Question # 1

How many kinds of space lattices are possible in a crystal?

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23

7

230

14

The rate diffusion of H₂is 4 times than the of an unknown gas at same temperature and pressure, the molecular mass of unknown gas is

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32

16

4

64

Highest oxidation state af the transition elements is

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+8

+7

+5

+1

Glucose and gulose are ____ for each other

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Geometrical isomers

Metamers

Apimers

None

If pressure is increased from a 2 atm to 4 atm on a gas then its volume will decrease from:

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3L to 1L

4L to 2L

6L to 4L

8L to 2L

Gases show uniform behavior towards their:

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Internal conditions.

External conditions.

Internal and external conditions.

None of above.

Carbon-Carbon double bond length in C3H6

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154 pm

134 pm

120 pm

105 pm

SO₂makes ___________ acid rains

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carbonic acid

Sulfuric

Nitric acid

All of these

Which of the following is not a carbohydrate?

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nuclic acid

strach

glycoyen

cellulose

At higher temperature isotherm moves away from y-axis because of increase in

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Pressure

Number of moles

Volume

Mass

The suspended particles in the raw water can be removed by the

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Coagulation

Aeration

Hydration

Dehydration

Which one of the following substance is use as decolonizing agent

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Asbestos

Animal charcoal

conc, H₂SO₄

Silica gel

If the radius of first Bohr orbit be a_o, then the radius of third Bohr orbit would be

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3 x a_o

6 x a_o

9 x a_o

1/2 x a_o

When a carboxylic acid reacts with a metal ______ gas is evolved

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H₂

CO₂

CI₂

None of these

The compound which gives oxygen on moderate heating is

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Zinc oxide

Mercuric oxide

Aluminium oxide

Ferric oxide

Hydrolysis of sucrose is called

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Inhibition

Saponification

Inversion

Hydration

The avtive mass of 64 g of HI in a two litre flask would be

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2

1

5

0.25

Glyptal polymer is obtained from glycerol on reacting with

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Malonic acid

Phthalic acid

Maleic acid

Acetic acid

BOD is the oxygen demand with in days(s):

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Four

Two

Three

Five

The net heat change in chemical reaction is same whether it is brought in two or more different ways in one or several steps. it is known as

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Henry's law

Joule's principle

Hess's law

Law of conservation of energy

The number of electrons in the M shell of the element with atomic number 24 is

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24

12

13

8

The geometrical shape of a transition complexion is related to the state of hybridizing of the central atom. What is trigonal bipyramidal

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sp³

dsp²

dsp³

d²sp³

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