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RUET Admission Test 2011-2012

UMl!&h@OtiiMl&hi

01. (a) 1!RFllffi<R: dy/dx, lJ'(il' y=oot-1(� -x) '!11NA:y=cot- 1 (ff+'x2-x)

02.

l!fi,x=tan0

"'( 8 O) ·•{1-sln9} _1 {5ln1i-2slnieo�+cos2i} y = cot sec - tan = cot 7ose = cot cosli-sinzf

= cot·• ("'f';i) = cot·•(�) = cot·• ( '"i:"'1,) = cot·• {tan(! -!} COSt'"S!"i l+tani' 1+1an.1a"i 4

=cot-t{cot{;-;+?}J=;+i=�+tan

;ix

:.*=;x�= (1: z (b) 1!RF'fv-ffs dy/dx, lJ'(il' x'l =(x-y)"'b �: x'/=.(x-y) .. " ::::::,.Jn(x".y")=ln(x-y)" ... b ::;.lnx'+lny"= a b)In(x-y)

=>a+�-�= a+b'._ a+b_�

y dx x-y x-y dx

=-dx� =½zc'-½e•+c =½e'(z-:l)+c =½e'1

(x1 -l)+c

(b) -"""""'"'' / ,m·' m dx

�:I=Jsm-1£fctx=xsin-1ff-J�1

x ·½·4¥-�x+:�:.xdx 1-­

XH

=xsm-1 /X _/.Jxtt.!_.fitt._, __ xdx Vill ..fa 2-:t::"°(x+a)1

= xsin-1 /X _fi/ J;. dx 1/ill 2 x+a

f J;: dx ,.,

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J222dz =2j

2':a-a dz=2J(1-�Jc1z =2z-2a . ....!....,an-1� z2+a z-+a z1+a Ji. fa

=2z-2Ja1an-1* ""2Fx-2Fatan-1f [z=Fx}

:.I=xsin-1g-.&+atan-1[)+c

(b) 11Rf#lr1R: !ln(x2+l)dx

�: f�ln(x2 + l)dx

f tn(x2 +l)dx =ln(x2 +1).J dx-f():iJctx )c1x =xln(x2 +1)-2.f /:1 dx

=xln(x2 +l)-2.Jx2

+l-ldx =xln(x1 +l)-2.J(1-_!_Jdx =x1n.(x2 +1)-2(x-tan-1 x)+c x2+1 x2 +1

limw<IP!rn, 1.Jn(i2+1)-2(1-tan-1 l)-0+2(0-tan-1 0) =ln2-2(1-¾) =ln 2-2+�

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.._ (a)""'f.l.f;=iJ•-41<2

�: 13x-41<2=>-2<3x-4<2 =>-2+4<3x<2+4 =>2<3x<6 =>¾<x<2

(b) f(x)=sinx WI, li!iff.!\fl!<RI � .. 0 f(x+:

-f(x)

�: � ... 0sin(x+:)-sinx When,h�Othennh�O 2oos(x+�)sin� nh sin� nh sin�

=� 2 2 =h cos(u-)--2 =· cos(u-J.• _l_ .� ... o nh olMG 2·� •IHO 2•

=cosx.l =cosx 2

�) Ill. (a)'"'t"f.mr-..12+;� �v

�: 2+.i.� "'½(4+2iJ(a+2)(a-2) =½(.Ja+2+i.Ja:'2'f,

06.

. f.lt,f,,'"'t"=±ri<�+.Ja-21 A (b)' °"'""'· (An�)x(CnD)=(Axqn(B �' ....,., (AnB)x(CnD)={(a,y),(aA (yeC •« yeD)}

,rtlMif: a+P=-.9.; a.f3= !. p p

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08.

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2b =(a+b+c)3 2, l c-a-b 2a

I la+b+c

2b = 2b c-a-b 2c

=(a+b+c)l21b b-c-a 2

1b I

2c 2c c-a-b

a+b+c b-c-a

2c

ub+cl 2b [r,=1i+r2+rJJ

c-a-b

x = v,. t = 19.6cos30° x4 =67.8963m (i) 'W5, v

y =9.8-9.8x4 = -29.4ms-•

v=Jv,<v/ =h9.41+16.972 =33.95ms-1

' :. � 4s "IJ, 'Of11it�Cfife,J 67.9m ��'!IN 30° c*rter, 33.95ms-1 C<M�lffi<l"1 09. (a) ��lJlit�dt��C'fflt�1�it"�"'!AR"�c,Q?R1

��l!if1FII 'C2x'sC1=..!!:.__ 51C

J 5525

(b) "['IPl•"*""fffi'RI -FJ+;

�:�, r=� =:J(-.J3)2 +1 2 =E+i =2 � y -1 I 1t Sn "'''J.""'·", 0=tan-•; =tan c::73) :n-

6 =

6

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) P,Q 'll'l'{!l"G <Jim'!lii R,0 �fu!;m,m-1 lllit�� P,Q,R .a���

����;;:·�-·A=P.�+Q.�=R.�

-·-£-+�='6N" (Showed) o E x

!Pl x= +y'=45 � (6,-3) ��� x2 +y2 -4x+2y-35=0 � A 19 B :F�1�Q'I.A'eB����1

�:x2 +y2=45 ....... (i),�(6,-3)���"'?fm" :::>2x-y=l5 ::::>y=2x-!5 ........ (ii)

.............. (i)

:.5t2

=100t :.t=20sec

<.!lit$���� Sm l'IVl���'$f!N 30° i:ffl��I 60kg �<.!lW.

20kg ��� IOsec-<.!l�twl'.wrn�c-ra�1

�=�=sin30° :.h=5sin30° =�iwm 5 2

m=60+20=80kg

W=mgll =80x9.8x% =1960J

P="'.!!._= 1960 =196W=�H.P =0.26273H.P. t 10 746

�h

kJ

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13. "f'IIR��rejl'�'1TtH'��'J!'ll'lif<ll'l,2faTl'l'11111:'l"ltft'f�1!Bft"� 2.5 O"I' '1f 1fflwtttlrt.<.llll"ti'lr$"� l.8xl011N/m1 IS l.6x!011N/m2

1 ���f.M'v<1111 �:We know, F= yt

14.

1!1�,/2 ::2.S/1

l!l"l'-1' F = Y1AJ1. F = Y2Ai1. ' I LI

' l L,

LI =L2 /l =2.5/1

:. Y1A1/1

= Y1Aif2 => Y1n( � )' /1 = Y21t( � J /2 . (.<!i.)

l : "!J.i = J.6x )011 X 2.5/1 : .!2 ·· d2 Y1'1 l.8xHY1x/1 9 . d, _ 2.Js '

r, .. --3

:.d,:d,=2v5:3

�ttl"f =4200Jkg-1K-1

0kg � o·c l!t'l1ll<m 10kg �����"f =mlr =IOx 3600q=3.36xl(f'J o·c- 10kg onm JO'C"""""' IOkg --.... -- ==B = 10x4200x30 = 129'X)OOJ :. �'iffl',fflf1fil' =(3.36xl06 +1260000)J=4.62xl06J

16.• �fq��1l,f&�cw,np 4cm i,t'i'�;mr.ar-J�� 5/4 �'Wf�<mr1 Ofl'l'·�OO"flJl'r 12C.G.S.�;wr����fim"<R1

20 :.m,=-m, m1 +m2

= 12 =>�+m2=12 =>20+m;=l2m2 =>m!-12m2 +20=0 m, => mi-10m2 -2m1 +20=0 => m

2(m

2 -I0)-2(m, -10)=0

=>(m2 -IO)(m2-2)=0 :.m2=IO or,m2 =2 :.m1 =2 or,IOgm

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1· 10mm2��'"fltw0.2nnn 'l,il'i1i"IHIWMb0.15A �am:�m���? Clfffl"����'f'ITilJ l.118x!O..-,skgC-1 <!l;n.� 10800kgm-3 1 'l'l!NA: A= 10nuri2 =l0xl0....sm2; p= l0800kgm-3; d=0.2xl0-3m --.. w. --v wrW=pV :.W=Adp(V=Ad] Agirin, W=ZQ=Zit :.Zit=Adp

Adp !Ox10-(ix0.2x\0-3xl0800

:. 1

Zi l.118xJ0-6x0.15 128'8sec

18. --.ft'f;fl:�1FIIWR!m� 15cm �����9fl@1ff��� �<ffil'fQi� 60cm lj_alifi?ltmwiT��'Pffi!C<f? � <!l��'lfll'ffl'Cl!"l�fl!Wfrn"f� 60cm lj_al"��

�cm w•

"''

u=06m,v=--015m 6� !=.!.+.!.=_l_+_!_=-5m I P=.!.=-5D .V f V U -0.15 0.6 f

19.• �<lJffli.ii-4.���<Rt'fil'l!I���� 3sec �ii��,�,��

"11'<1JM�� 550ft ��'"Jii!ITV�<R'l;l'lii,Jm_,ll�

v2 v1-2 2 c2 4 c2 4 2

=gl ::::, [Z=.!.=>1-�= .!. =>�=l =>v=�xc 1-� .

11@\hBi&MIMii 2]. ]Qml ffl'Pfm � '11N ������I � 9l'lf emu-� 40ml

�,iFl11!1� NaOH ��ltmr�<ffil'f 50ml �-l?f'Pfm1����f.i'>?

�:C,H)+(x+!)o2

= £02 +fHP :. I0�1o(x+1)�1Qx'llfl'!!Wo,IO½�

l!l.r,f�"l1'��=<llt""A'� (H10) ..a����'IW'I��=� �91ifC02 i.!l11"�1

:.\Ox=50 <l'l, x=S ..!1�101=40 :.y=B :.���C5H8 1

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22.(a)'IOOt"llfhl-�--li\lolo1

-·-�·��""'"""'"""'P' """""°'7• °""""' '"""""..-•��

fi PH lllil'5�4.3 i.!l�C11'NCINT1fml�-,ft�'lli'T'AS�'llltlllll'!l-rar�llt'f1fm,�

23.

24.

tm.'llJF,1'fl'!Tif-�QlJF,l!ll��.C'llf.��·�'ft�'f'llil,mr,{il

(b) 34lgm ��4gmsucrose��W"f��'ff?

1000x4 342x341

= 0.0343 molal

m=��

W1=��!fm�(g-<11)

w2 =��(g-i.!l) M=!;ro!��

(b) Aspirin 0-C-CHl

�:@-cooH

TH

J (c)Dettol """"' ;.

H3C Cl CH3 (d) Tetramethyl methane �: H1c-y-cH1

CH,

CH,

(e) TNT "l"'lflfA: 02N.N02

NO, 25. (a) "Quicklime" ,!Bl'�•ir1J�JH1ir��?

�1��f!JPI (NH1) �

81<fiWP'fmf%f.1'���foQ' Ql��I

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(b)��--fil<,

"llf� �: FeS04.7Hp

� �:Na3AIF

6

�� �: CuFeS2 � <!l1'ra � CH3COOH � �: CaS04.2H20

16. (a)�.�'51mrr-�"flillt�f,ijs-'fl/!d-��m,{�? "l"IINR:C'<���l:l"Fffl��t'lfmf����'lre;m'� iST!llmff��1�1ffei"��fi:!t.,�����91J'mCffl l�C1J 'l'R°����<R't'l"�Clrall���'lre���� Id � � � �� � � I

r .& ' (b) """'"'-"" CH,COOH ""'°"" HCI ""'°""'�

�: HCI ciwt� N'a2S � HiS '1Wf���1� €H3 OOH �� � <Jifflt<f�'l!',ij:t'if"f�I

11. �ci1\mFffift�lif�"IC=51.28%;H=4.9%;0=2.35%; =,I.97%��

28.

�234Wf,�1,6f��'O���f.l<fil<R"1 �: C :H:0:N = 51.28:�:27.35:11.97 =(273 4�. 09.3,:0.855

12 I 16 14 :.C:H:O:N=5:\U:\

�Wi5?

�: PCli+CJ

2FPCl

i

--· 0.5 0.5 0 �l 0.5-x 0.5-x x

' '-

k -�- � :.49=-----2....__(

o.,,-x

J' "· [7x (0,

.5-x)ll

=2, c-[PCIJ][Cl1]-(0.5

5-x)(0.55

-x) ..

<l'I, (3.5;tf·)1 =% <l'I, (3.5-7x)2 =5x <l'I, 12.25-49x+49x2 =5x By solving, x = 0.7826 mo! (f!W) .w,, 0.3195mol (.mv) <lll:'ll'ti'i!, 0.7826mol (<:iUiro) :. �. PCl

s aa0.3!95mol

PCl3

"'Cl2

= (0.5-0.3195)mol = 0.I805m:,l

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29. (a) ,m"1s...-i.... PVC l'ril"'1'1!"1-""""'°""' 1 �: CaC03 (� �CaO+C02 1'

30.

3C + Cao ::.�; . ., CaC1 + CO2 t

lll)Ca + 2H20-+ H-C:: C - H + Ca(OH)z C -HCaaCH+HCI is:,2;t H2C=CHCI nH,C=CHCI �- r-H,C -f,H-J

PVC (b)f.w--�-""'lii<'

(iii) CH3COOH + NaOH --+. �; CH3COOH+NaOH--+CH

3COONa+H10

(iv) C(s)+Hp{g)� �: c(O) +HP1a) �CO+H2) 'llf.i""" OH (v)@c�OOH +CH30H(lj («>n<JH,so, l

iv)ri9fllilil"

OH OH �:@rCOOH +CHpH�©rCOOCH3 +Hp

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I lft§@NCSiihMi .:. . (a) Translate the following sentences into English,

(i) � <!l� � 'll!mJ � � � � �� � I Ans: He speaks so meekly that we can't hear. (ii) �<Jii1T�'fffll Ans: To err is human. (iii) �'<!'01'6�����1

Ans: Each & every hour and minute comes to the call of duty. n. (a) Convert the following sentences as directed.

» (i) Jim was only twenty two. (Make in negative) Ans: Jim was not more/less than twenty two.

� (ii) He is so week that he cannot walk. (Make it simple)

�� Ans: He is too weak to Walk.

(iii) Naturally a mother loves her child. (Make it compound) Ans: A mother loves her child and it is natural. (b) Make sfntences with the followlns: (i) To and fro (moving from one place to another and bac Ans: Small boats busied to and fro. • (ii) In harmony with (Agreement in feelings) '-. � Ans: I try to Jive in hannony with nature. �' (iii) Well off(being in good condition) Ans: If you have you health, you are�- en.

n (a) Fill up the blanks with approP.rfate orils. (i) A soft wind the sfii� gent!� back to harbon. (ii) Put _ _ �e�n th(Q.lackboard. (iii) I wish to know tile sid man is to-day. (b) Rew�ite tti following sentences with correct form of verbs. (i) Twj�(to st�, inmg. A��w:i�,rti-stopped.,saining. (ii) '"f�rfa(n Clfave) he stati�n before he reached._

�i�;=

���:a

;�tf �:�rt: tt:t�:� :�:���

he reached.

Ans: Karim walks as ifhe were a hero. 34. (a) Change the voice ofth� following.

Ans: pulls Ans:down Ans:where

(i) Why did the teacher punish you? Ans: Why were you punished by the teacher? (ii) His conduct shocked me. Ans: I was shocked at his conduct. (iii) It is known to me what he thinks. Ans: I know what he thinks. (b) Change the narration of the following : (i) Khalid said, "Alas! how unfortunate I have been!" Ans: Khalid expressed with sorrow that he had been very unfortunate. (ii) The police said to me, "Why did you strike me?" Ans: The police asked me why I struck him. (iii) He said, "I could do it tomorrow". Ans: He said that he could do it the next day.

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(c) Correct the following sentences : (i) I doubt that he will do it. Ans: I doubt that he may not do it. (ii) My father is presently living in Rajshahi. Ans: My father lives in Rajshahi. (iii) They discussed about the matter. Ans: They discussed the matter. (iv) I have no taka in my pocket. Ans: I have no money in my pocket.

35. Read the passage below carefully and answer the questions put forward. The envirorunent refers to the air, water and land in which people, animals and plants leave. So human beings. animals, plants, air, water and soil are the main elements of environment. The natural forces such as storms, cyclones and earthquakes are also a part of this environment. Climate is thus a condition of the environment. All things that make up the enviro - t �nterrelated. The way in which the people, animals and plants are related to each other and to heir surroundings is known as ecology. The ecosystem is a complex web that Jinks animals, pl�� other life form in the biosphere. All these things hang together. The syst:91, is in a steaciY. �te of dynamic balance which means tlµt by altema1ing any one part of the web u ca4t:r,$1,.iilJl>e other parts.

Questions: "'-..V(a) What.elements make up the environment? Ans: Humari beings, animals, plants, air, water and soil (b) How are the elements interrelated? Ans: The elements are interrelated in a comple we (c) Whatdoyou mean'oy climate?

� Ans: Climate is a condition of environmen (d) Whal is meant by ecological balance Ans: Ect .. ogical balance is the con<iition

�a itat of the clements.

0, <iH- �� ml!

�) (b ·, 2(-i±"3) (c) 0, �(i±"3) (d) 0, �(-i±"3) (e) None

'!11NA:(b)\�=ifii=x :.x3=jl

.. x•i,iro,ioo' •i,{�l�"3i) ·{i�"3)

02.* 22 +42 +6

2 + ........ +(2n)2 :=.?

(a) i n(2n + 2)(2n + I)

(c) ¾n(n+l)(2n+l)

�:(c); Un =(2n)2 =4n2

:. S. =4Ln2 = 4. n(n + 1)6(2n + I)

=¾n(n+ I) (2n+ I)

(b) in(n+l)(2n+l)

(d) %n(n+l)(2n+I)

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(e) None

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03. J-3+)-3+.J-3+ ....... m =?

(a) -fli (b) -I±Jili 2

_,.,(c);J-J+�=X

(c) !±/:Ti 2 (d) I±Jil

2

:.-J+J-3+.J-3+ ........ =x2 �. x2 +3=x �. x2-x+3=0

I±� !±HI :.x=- -2- =-2-

04.* l+l?+ ;,:4 + 1;,�

} + ....... ro=?

(a)* (b)� (c)-H

05.

(d) logxy3z

06.

={1+2x+3x2+4x3 + ......... +(n+l).x"+ ........ co)+

(e) None

on

{e) None

I log, I I log2z =0

I log3z

(e) None

2x{\+2x+3x2 + ......... +nx•-1 + ........ co)+x1{J+2x+ ........ +(n-l)x"-2 + ...... m} :.x" <.!l�� =n+1+2n+n-1=4n

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07. lx+iyl=5'ffl�? (a)""'""1 (b)� (di¥

'!'IINR:(d);lx+iyl=5 :.�=5 :.x 1 +y2 =f,��1 08. 'THESIS' ��'tl'IT�� 4ffl"'51"1R!f.rrno$��:m�-

(a) 24 (b) 12 (c) 5 (d) 11 (c) 14 _, (d); THESIS"""'" 6�"1lf 21" S • 4!>Fs;,, 41t"�<l"1'Rrn'"Pl��lffil�-- """"

(i) 41tren 1c,

(Ii) 2ft S t3 2�1%:i Jx'C2 :. 1'$=\I

09. llftffl"� x2 -llx-+a=O (3 x2-14x+2a=O <!li1�

10.

12.

(a) 0, 24 (b) 0, -24 (c) I, -1 (d) -2, I 'fllNR (a),��o.WI,

a=0,24

(e) None

�:(e); 3A+2B=19i-I3]-3ok.

(a) /=20x (b)9x2+16y2 =144 (c) �-i_=l (d)x 2+y2 =25 (e)y1 -x 2 =25 5 4

'!'IINR: (d); ���m� �OO!ffm<f�������-r-f�'ifl 1 13. sin3 x +sin3(120° +x)+sin3(240° +x) =?

(a) -3sin3x (b) -isin3x (c) ¾sin3x (d) -¾sin3x (e) -isin3x

'!'IINR: (d); x =30° ffl, sin3 30° +sin3 150° +sin3 270° =-¾sin(3x30°)

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1.(sin8oos8+"3)=JJC058+4sin8 and 0<8<3(i()" then, 8=?

w�� OO�if oo�w oo�� oo­�:<c>; 2(sin0cos8+J3)=,Jjcose+4sin0

8:f/J0

� 120° �'!{;if LH.S.=R.HS. �I Uf xsiny+ycosx=n: �. � y"(O) <n1"llfoT� (•) rr (b) -rr (c) I

(•) -i (b) -1 (c) -1I

�(a),�:o

2-.Jx+4 =�:o

-� sm2x 2cos2x

-I -I -I ""2J:ix2cosO� :"hhl

"'

8

5eh

I�=?

(a) �ln(l+eh )+c

(c) %1ar(1(e2')+c

(c)�

(d)O

(d) �

(d)� . 2

(e)2

(e) None

(e)rr oil ,11 Oil oil

�:(e); _I�sinx+cosx)2dx =2 [(sin2 x� oos1 x+sin2x)dx =2 [dx+2 [sin2xdx

= 2.� -2.½(cos2x�'1 = n-(cosn-cosO] = 1t

19. 7t'J!l'lil, 3$��-�,mm;u�. �<Jlt'IT�"l!"llffl.if�'Jli'Rili-

(c)� (d)�

���"IT"ll'frfiir-rr<Wltlr'Jl!IIW!!� tx 8C1 7 _,(d);P "'°"""""'l<'ll = 10! =153! 7!

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[Ans:a]

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20. �� h ����(5i'111'���<4lt�C"111'� � ��"' 25

(g=9.8m/sec2) �� h m ­(a) IOOm (b) 122.5m (c) 145m (d) 167.5m (e) 120.5m

"f1lt1:flil: (b); ¥s-= ½ x9.8x(2t-1) = 9.8t-4.9

h=-4.912=¥(9.8,-4.9) =,2 ,,,¥c2t-l) :::::>9t2 =50t-25 :::::>9t2-50t+25=0

:.t=5,5/9 t�S/9 ·:t>I :.h=4.9x52=122.5m 21. ��-·'!'"

(a)M�lll\' (b)M=GR' (c)M=gR' G g G

. . GM . gR. 2 �.(c), g=

Rf . . M=Q

22.-�-�-""§'ll?

23.

24.

25.

26.

(a) Str�s (b) Strain (c) Surface tensio .

'!.-

_,(,);�-=�·�-

(e) None

(d) 273'F (e) 460"F

:.x=160"C :.2x=320°F

••NFt (a); Q =ml_= 2.5, 336kJ = 840kJ

(a) MI.:1T2 (b) ML1T2 (c) Ml.;r2 (d) ML2r2 (e) MLT2

�:(c); 1T19T11F1sin8; 1fF(LMLT2]=[MCr21 28. 220V,40W � IIOV,40W ����rnoor�ITT1ill'il'1

(a) U (b) IA (c) 2,1 (d) 4,1 (e) 3,1 V2 2202 V 2 1 102 R i2 xll02

�:(d); R1 = --t;-=40; R2 =t "'40 :.�=11()2 ::: 4:1

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35.

36.

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�----- [ Aos, c]

(•) m=l+£ (b) m=-'',J1+£) (c) m=f ( __l_+__I_) (d) m=__I_( __l_+__I_) (e) None F u.l r, "lo r, r.lo r,

�� 20cm 'lfllt-l'ff'lffl!"lrfo''ffl'r60cm fffl.Tm-•u.���W? (b) 30cm (c) 50cm (d) 20cm (e) 60cm

·:1'<"""']

(e) None

(d) 3.6x]O�J (e) 3.6xW·-'J

(a) 15x!Oi.J (b) 45xJ014J (c) 4.Sx\014} (d) 3.5xl014J (c) 35xJ014J �:(c); E=rrx:l =5xl0-1 x(Jxlo'fJ =4.5xl014J

37. �"flllii1'1'��f.i,;:vym����1�fiff��fiR11A�? (a) 60", 60" & 240" (b) 90", 90• & 180" [Ansc c] (c) 120", 120° & 120° (d) 150", 150" & 60" (e) None

38. 100 �Rfirti4"4ft� SA ��5Tfllt1'! O.Olwb �Jmt"-9!i�1�""'1rl'IITT"t'ff? (a) 0.2mH (b) 2.0mH (c) 20mH (d) 20H (e) 0.2H

�;(c); q>=l00x0.0IWb=IWb;l=5A :.L=-T':iH=0.2H

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39. Au191 <DTl!IR'.-v�� 0.257 1 Au1" <!ll'\,i'�'ff? oom• oo=• oom• oom• oo�•

�:(e); T1 .. � =�days=2.7days l ). 0.257 40. ������<RI

(a) I.Sm (b) 2m (c) Im �:(c); g=41tl -T\ :.L=�= 9.Sxzl =Im 411:2 4x9.86

(d)Jm (e)2.Sm

41. f.if;'j't-m-, 27J°C �9f'lllilTf'l!M"R� J.85xJ0-2m3 I 25°C �"Uflltt (a) 0.0lm3 (b) 0.02 ml (c) 0.03m3 (d) 0.04m1 (e) �:(a);�=� � ... 1.ssx10-2

=

� T1 T

2 273+273 273+25

42. Ne <.!ll�fit;np,-"'*®? (a) ls2 (b) ls22s22p6

�:(b); Ne(IO)=ls2 2s 12p6

43 ----"""""""""''l!I" ,

44.

48.

(a) Js (b) 2p (c) 2s d)

(b) water and phenol (d) water and HCI

(d) HCIO,

(a) H2C0

3 +H20= Hp• +HCO� (b) CO

2 +HP=2H' +CO;

(c) HCO;=w+coj- (d) HC03=H'+Hco;

(e) S

(c)H-bond

(e) None

(c) CH,COOH

(e) None

[Ans:dJ

[Ans:cJ

[Ans:c]

[Ans:a]

49. �e-<ir,1G��C<l:rt�,1.11mlfffl�fWPf�it�? [Ans:a] (a) increases (b) decreases (c) not dependent (d) both increases and decreases (c) None

50. �l{OO�G�fi'r� C=40%, H=6.67% 1..!1l1'f��.ff1 (a) CHp (b) CHO (c) C2

HP (d) CiH,02

(e) C4H10 "l'IINPl':(a); C==�e=3.33;0= 5�:3 :::3.33; H= 6·t =6.67 :.C:H:0=1:2:1

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(a) C6 -C7 (b) C1� -Cn (c) C2j -C�0 (d) C5 -C

12

.i2. ���'fWl'Wlm$!J�CH,? (a) 20% (b) 50% (c)80% (d) 95-99% (e) None

53. f.im" C<W$ Ester? 0

(a) 11 R-C-0-R'

(d) R-COOH-0 ,,.,.,,,(a); R-

f-0-R'

0

R-C-0-R'-R' (b)

b (e) Neither of these

54. 6.00� Fe2(S0,)3 <.!l �sulfur�?

(a) 2.40� (b) 0.48� (c) 6.00�

�:(d); M�.,iso.i, =399.7

55. iiro"�fff.:Ji.,n"ff? (a) 20% Zn+80% Cu

0 (,) II

R-C-R"

(c) 20% Zn+80% Ni (e) None

[Ans:d]

[Ans:d]

[Ans:a]

¼ [-aj (d) \0 > 3° > 2° (e) None

57. [Ans:bJ

(a) Tt"anct(it" )���dt (d) �and-: (e) None

�·I-"'r' 58. 00" -pH=8.5,��W��?(��=2.3 litre)

(a) 7.27x10-�(b) 3.16xl0-9 (c)4.38x10 15 . (d)l.9x!0 15 (e) None "l1lflftil:(c); - log{�'J=8.5 :.[H"]=3.!6x!0-9moleL-1

:. W <!l'il'�-m =3.16xl0-9x2.3x6.023x!0 23fft =4.38x\0 15fft 59.���?

(a) meladure (b) fonnaldehyde (c) urea (d)formica (e) None 60.<.!l�f.mwrct'fl!�-

(c) Aip1 .3Hp (d) AIF103 .3NaF (e) None

[Ans:c]

[Ans;a]

61. Choose the correct answer for translation of the following sentence into English. [Ans: d) \!,<ll"�ffl�.n1

(a)Clappingis not possible byonehand. (c)lt isnotpossible to clapbyonehand. (e) lt cannotbe clapped in onehand.

(b)Onehand doesnotclap. (d)lttakcstwo tomakeaquarrel.

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62. Select the correct answer for translalion of the following sentence into Bengali. [Ans:c) He is hard ofhearing. (a)�l:l��I (b)�,:iR�I (c)����I (d)�C"fti!IV�I (C)�1>,��·I

63. Choose 1he rig hi answer for con\•erslon of the following senten« as dirttted. [Ans:c) Mount Everst is the highest peak of the Himalayas. (Make it positive) (a) Mount Evers! is higher than any other peak of the Himalayas. (b) The high peak of the Himalayas is Mount Everest. (c) It is Mount Everest which is the highest peak of the Himalayas. (d) Any other peak is not so high as Mount Everest in the Himalayas. (e) No o1her peak is as high as Mount Everest of the Himalayas.

64. Select the corr«t sentence with the following: Ger by bean Ans:a] (a) A gets the poem by heart (b) I shall get the ball by heart (c)Karirngcts thcjob by heart (d)Getthc matter�y hcan (�He� II ti

65. Choose appropriate Word to rm in the blank. My father 1s confined .. . . .. 11 (a)for (b)on (c)with (d)to e) y

66. [Ans:c]

67. [Ans:d]

68. [Ans:e]

69. [Ans:bJ

(a) Two do1.cns makes twenty-four (b) Two dozen makes twenty-four. (c) Two dozens means twenty�four. (d) Twenty-four means two dozens. (c)Twenty-fourmaketwo dozens.

70. Read the following passage carefully and then chose rhe right word lo complete the sentence that follows. Abdullah was wounded in a Qlnle. The bone of his thigh was broken, ye1 he walked about a mile and reached his camp. He was very rhirsly aod became almost fainted with the great exhaus1ion. He asked for a cup of water. The water was instantly brought in for him. But when he was about to put the cup to his mouth he found that an ordinary solder was looking at the cup wishfully. He was so Jong uncared for. The generous Abdullah then handed over the cup to the soldier, instead of taking himself. saying: "The necessityis grcater than mine" Greatness lies in..... (Ans:c] (a) honesty (b) knowledge (c)sympathy (d) liberal (e) lruth

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