Question # 1

Which type of reactions speed up gradully?

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Decomposition reaction

Forward reaction

Reverse reactions

Irreversibel reactions

Which one of the example of colloid.

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Paints

Milk of magnesia

Jelly

None of these

The new substance formed in a chemcial reaction is.

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Reverse

Reactant

Forward

Product

Which one of the following is heterogeneious mixture.

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Milk

Ink

Sugar solution

Milk of magnesia

Which form of carbon is used as a lubricant?

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Coal

Diamond

Charcoal

Graphite

How many hydroxide ions, calium hydroxide will release in water.

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2

1

3

zero

The elements of group 3 to 12 are clled.

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Normal elements

Halogens

Noble gases

Transition elements

Milk of magnesia contains Mg(OH)2 It is used as antacid It neutralizes excess stomachaacid. Which salt is formed in this reaction.

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MgCl2

MgSO4

MgCO3

MgO

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 compund has same molecular and emiprical formula.

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C6H12 O6

H2O2

H2O

C6H6

Activation energy of a chemical reaction must be....... the everage kinetic energy of reacting molecules.

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Equal to

Grether than

Lower than

None of these

Emperical Formula of Glucose is

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CH2O

CHO

CHO2

C2HO

When system is at quilibrium state.

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The rate of the forward and reverse rections become equal

The concentrationof reatants and product becoes equal

The oposing reactions stop

The rate of the reverse reactio becomes very low

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