Question # 1

The solubility of which salt decreases with the increase of temperture.

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KNO3

Li2SO4

KCl

NaNO3

¹³ C and ¹⁴ C are both present in nature.

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0,1 %

1.1 %

0.9 %

1.5 %

A complete reaction is in which

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Only 10% reactants covert into products

All the reactants covrt into products

All the reactants do no covrt into products

Half reactants covert into produts

Octet rule is

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Attainign of eight electrons in its valence shell

Discription of eight electrons

Pictur eof electronic configuration

Pattern of electronic configuration

Which element has the highest melting point.

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K

Cs

Na

Rb

Which molecule contains a single vovalent bond.

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CH4

C2H4

C2H2

O2

A bond formed by the mutual sharing an electron pair is called.

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Ionic bond

Metallic bond

Covalent bond

Coordinate covalent bond

Matter is present in neon signs in the state of

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Supereritical fluid

Gas

Liquid Crystal

Plasma

Solubility of whcih salt increases with the increase of temperture.

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KNO3

KCL

NaNO3

All of These

The molecular mass of H2SO4 is.

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9.8 g

98 amu

98 g

9.8 amu

What will happen if the rates of forward and reverse reactions are very high

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The reaction will be practiclly irreversible

The equilibrium point will reach very soon

The equilibiurm point will reach very late

The reaction will not attain the state of dynamic equilibrium

Which of the following is a heterogeneous mixture

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Concrete mixture

a solution of potassium nitrate in water

a solution of calcium hydroxide in water

Hot chocolate

Which one of the following compounds will hae the highest percentage of the mass of nitrogen?

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N2H4

CO (NH2)2

NH3

NH2OH

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