Question # 1

Nylon 6, 6 is a condensation polymer of

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Phthalic acid and hexa ethylene diamine

Adipic acid and hexaethylene diamine

Phthalic acid and glycerol

Adipic acid and glycerol

H₂and O₂are enclosed in porous vessel. The effusion of these gases will take place like

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H₂effuses 4 times the rate of effusion of O₂

O₂effuses into air 4 times the effusion of H₂

both effuse at same rate

H₂effuses at 8 times the rate of effusion of O₂

A compound z' decolorizes bromine water and produces white ppt. The compound 'z'is

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Alkane

Alcohol

Phenol

Benzene

Which of the following protein has application is food industry

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Globulin

Gelatin

Casein

All

Insoluble ferric oxide is produced in the pH range:

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1 to 8

6 to 9

3 to 13

8 to 13

Substituted phenyl group are called

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Arene groups

Alkyl groups

Aryl groups

Acyl groups

The process in which solid is directly coverted into gaseous state is called

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evaporation

boiling

sublimation

transformation

According to Hess's law, the enthalpy change for a reaction

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Depends on path

Independent of the path

The sum of ∆E and ∆H

None of these

For a chemical reaction which can never be a fractional no

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order

molecularity

half-life

rate constant

The rate of diffusion of hydrogen gas is three times than that of an unknown gas at same temperature and pressure than the molar mass of unknown gas is

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32

18

16

27

Areal gas obeying Van der Waal's equation will resemble ideal gas ilf the:

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both a and b are large

both a and b are small

a is small and b is large

a is large and b is small

Which of the following species has unpaired electrons in antibonding molecular orbitals

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50 cm³of 0.05 molar nrea (N₂H₄CO) solution has % W/N concentration

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6%

3%

0.3 %

0.6 %

An example of water soluble vitamin is

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Vitamin D

Vitamin E

Vitamin A

Vitamin C

The driving force for making a bond is

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To attain noble gas electronic configuration

To make soled compounds

To make different compounds

To make gaseous substances

Chemistry related to the study of environment affected by the chemicals and pollutants is called:

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Biochemistry

Physical chemistry

Pharmaceutical chemistry

Environmental chemistry

In a lime kiln, to get higher yield of CO₂, the measure that can be taken is

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To main high temperature

To pump out CO₂

To remove Cao

To add more CaCO₃

Concentration of rectified spirit is:

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12%

14%

90%

95%

How many moles of hydrogen atoms does 3.2 g of methane, CH₄, contain?

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0.02

0.2

0.4

0.8

Which colour is imparted by sodium

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Yellow

Violet

Red

Crimson

Precipitation will occur until the ionic product becomes

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Equal to K_sp

Lesser than K_sp

Greater than K_sp

None of these

Under what condition of temperature and pressure the formation of atomic hydrogen from molecular hydrogen will be favourd

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High temperature and high pressure

Low temperature and low pressure

High temperature and low pressure

:Low temperature and high pressure

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