ICH {ZX}e : ¶h 鳧Z n "A', "~' Am¡a

ICH

June - Examination 2019 BScP Examination Introductory Chemistry

Paper - ICH

Time : 3 Hours ] [ Max. Marks :- 80

Note: The question paper is divided into three sections A, B and C.

Write answers as per the given instructions.

{ZX}e : ¶h àíZ nÌ "A', "~' Am¡a "g' VrZ IÊS>m| ‘| {d^m{OV h¡& à˶oH$

IÊS> Ho$ {ZX}emZwgma àíZm| Ho$ CÎma Xr{OE&

Section - A 8

×

2 = 16 (Very Short Answer Questions)

Note: Answer all questions. As per the nature of the question delimit your answer in one word, one sentence or maximum up to 30 words. Each question carries 2 marks.

IÊS> - "A' (A{V bKw CÎmar¶ àíZ)

{ZX}e : g^r àíZm| Ho$ CÎma Xr{OE& Amn AnZo CÎma H$mo àíZmZwgma EH$ eãX, EH$ dm³¶ ¶m A{YH$V‘ 30 eãXm| ‘| n[agr{‘V H$s{OE& à˶oH$ àíZ 2 A§H$m| H$m h¡&

1) (i) Write the formula of Grignard reagent.

{J«ÝWma A{^H$‘©H$ H$m gyÌ {bImo&

380

ICH / 600 / 4 (1) (P.T.O.)

380

ICH / 600 / 4 (2) (Contd.)

(ii) What is German Silver?

O‘©Z {gëda ³¶m h¡?

(iii) Which acid is found in milk?

XÿY ‘| H$m¡Zgm Aåb nm¶m OmVm h¡?

(iv) What are halogens?

h¡bmoOZ ³¶m h¡?

(v) What are Noble gases?

CËH¥$îR> J¡go ³¶m h¡?

(vi) Write the electronic configuration of Cromium.

H«$mo{‘¶‘ H$m Bbo³Q´>mo{ZH$ {dݶmg {bImo&

(vii) Name two Ionic compounds.

Xmo Am¶{ZH$ ¶m¢{JH$mo Ho$ Zm‘ {bImo&

(viii) There are how many isotopes of carbon? Give their names.

H$m~©Z Ho$ {H$VZo Anê$n h¡? Zm‘ {bImo&

ICH / 600 / 4 (3) (P.T.O.) 380

Section - B 4

×

8 = 32 (Short Answer Questions)

Note: Answer any four questions. Each answer should not exceed 200 words. Each question carries 8 marks.

IÊS> - ~ (bKw CÎmar¶ àíZ)

{ZX}e : {H$Ýht Mma àíZm| Ho$ CÎma Xr{OE& Amn AnZo CÎma H$mo A{YH$V‘

200 eãXm| ‘| n[agr{‘V H$s{OE& à˶oH$ àíZ 8 A§H$m| H$m h¡&

2) Explain transition elements.

g§H«$‘U VËdm| H$mo g‘PmB¶o&

3) Write about hydrogen bending.

hmBS´>moOZ ~§Y na {Q>ßnUr {bImo&

4) What is buffer solution?

~’$a {db¶Z ³¶m h¡?

5) Explain the general characteristics of Ionic compounds.

Am¶{ZH$ ¶m¡{JH$mo Ho$ gm‘mݶ bjUm| H$mo g‘PmB¶o&

6) What is surface tension? Write its unit and formula.

n¥îR> hVm ³¶m h¡? BgH$s BH$mB© d gyÌ {bImo&

7) Calculate the number of s and p bonds in the following compounds.

{ZåZ{b{IV ¶m¡{JH$mo ‘o§

^s

Ed§

^p

~§Y ~VmB¶o&

i) CH₄ ii) CH ≡ CH iii) CH₂ = CH₂ iv) CH₃ – CHO

380

ICH / 600 / 4 (4)

8) Write a note on steel.

ñQ>rb na EH$ boI {b{IE&

9) What is group reagent?

g‘yh A{^H$‘©H$ ³¶m h¡?

Section - C 2

×

16 = 32 (Long Answer Questions)

Note: Answer any two questions. You have to delimit your each answer maximum up to 500 words. Each question carries 16 marks.

IÊS> - g (XrK© CÎmar¶ àíZ)

{ZX}e : {H$Ýht Xmo àíZm| Ho$ CÎma Xr{OE& Amn AnZo CÎma H$mo A{YH$V‘ 500 eãXm| ‘| n[agr{‘V H$s{OE& à˶oH$ àíZ 16 A§H$m| H$m h¡&

10) Write the classification of crystalline solids.

{H«$ñQ>br¶ R>mogm| H$m dJuH$aU {bImo&

11) Write an essay on Acid - Base Titration.

Aåb jmaH$ AZw‘mnZ na {Z~§Y {bImo&

12) Explain : (

g‘PmBE)

i) Gas Laws (

J¢gmo Ho$ {Z¶‘)

ii) Buffer solution (

~H$a {Z¶‘)

iii) Indicators (

gyMH$)

iv) PH scale (PH

n¡‘mZm)

13) Prove that PV = h RT

{gÕ H$amo H$s,

^{PV = h RT}