Question # 1

The colour of anhydrous copper (II)sulphate solid is

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Pink

Black

White

Blue

When we mvoe from top to bottom in a group atomic size.

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Decrease

Increases

First increases then decreases

None of the above

Empirical formula of Benzene is.

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CH2O

CH

C2H

CH2

Which one of the followign halogns has highest electronegativity

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Iodine

Fluorine

Chlorine

Bromine

1- gram atom of carbon contain hwo many moles.

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1 mole

2 mole

6 moles

12 moles

How many lone pairs are present on nitogenin ammonia molecule.

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One

Two

Three

Four

A state of matter whose properties are between those of liqids and crystalline solids.

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Plasma

dark matter

Liquid crystal

Supercriticl fluid

Formula of common salt is

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NaCl

AgCl

LiCl

KCl

When acids react with metals which gas is evolved?

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O2

N2

Cl2

H2

What is the mass of 4 moles of hydrogen gas.

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1 g

1.008 g

8.064 g

4.032 g

Which one of the following is heterogeneious mixture.

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Milk

Ink

Sugar solution

Milk of magnesia

17th Group of elements contain electrons in their outer most shell

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4

5

7

6

Whic period of the moden periodic table is condidered as incommplete period.

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5th

4th

7th

6th

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