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Chemistry for B.Sc first year

Total questions: 25

Worksheet time: 25mins

Name
Class
Date
1.

Non superimposable mirror images are called

a)

Diastereomers

b)

Homomers

c)

Enantiomers

2.

Enantiomers having same physical and chemical properties

a)

True

b)

False

3.

Diastereomers having same physical and chemical properties

a)

True

b)

False

4.

Dextro compound rotates plane 0olarised light ---- direction

a)

Clock wise

b)

Anti clock

c)

Norotation

5.

Which one of the following group has the highest priority according to the CIP rules

a)

CHO

b)

CH3

c)

CH2Cl

6.

compressibility factor for ideal gas

a)

1

b)

>> 1

c)

<1<1

7.

Real gases approach ideal behaviour at

a)

all conditions of T & P

b)

at loe T & High P

c)

high T & low P

8.

Critical temperature of CO2 is

a)

13.10C

b)

21.50 C

c)

31.10 C

9.

units of vanderwal constant "a"

a)

lit. mol-1

b)

atm. lit2. mol-2

c)

atm. lit-2. mol-2

10.

The Value of  Pc VcTc\frac{\text{Pc Vc}}{\text{Tc}}  

a)

 18R\frac{1}{8}R  

b)

 38R\frac{3}{8}R  

c)

 58R\frac{5}{8}R  

11.

Which gas cooles upon adiabatic expansion

a)

H2H_2

b)

He

c)

CO2CO_2

12.

which of the following gas can be easely liquified

a)

He

b)

CO2

c)

H2

13.

Joul-Thomson coefficient  μ\mu   is expressed as

a)

 (dHdP)T\left(\frac{\text{d}H}{\text{d}P}\right)_T  

b)

 (dHdT)P\left(\frac{\text{d}H}{\text{d}T}\right)_P  

c)

 (dTdP)H\left(\frac{\text{d}T}{\text{d}P}\right)_H  

14.

The product of P & V at high pressure

a)

<RT

b)

=RT

c)

>RT

15.

Below the critical temperature "V"(volume) has how many values

a)

1

b)

2

c)

3

16.

Soda water is which type of solution

a)

Solid in Liquid

b)

Liquid in Gas

c)

Gas in Liquid

17.

Roults law is obeyed by

a)

all type of solutions

b)

Non-Ideal solutions

c)

Ideal Solutions

18.

The value of  ΔHmix\Delta H_{mix}  for Ethanol + Chloroform

a)

0

b)

+ve

c)

-Ve

19.

which of the following statement is true for ideal solutions

a)

A-B interactions are greater than A-A & B-B onteractions

b)

A-B interactions are less than A-A & B-B onteractions

c)

A-B interactions are same as A-A & B-B onteractions

20.

which of the following gas has PV value always greater than RT

a)

H2

b)

He

c)

Both

21.

Meso-Tartaric acis is Optically active

a)

True

b)

False

22.

Disymmetric molecules havinng which type of symmetry

a)

C2- Axis of symmetry

b)

Ci - center of symmetry

c)

σ plane of symmetry

23.

which onen is the more priority group based on CIP rule

a)

-CH3

b)

CH2OH

c)

-CHO

24.

Diastereomers having same physical and chemical properties

a)

True

b)

False

25.

the total number of symmetry elements possible in sloid crystals

a)

23

b)

31

c)

25