Question # 1

Crystal can be classified in to -------------- basic crystal habits

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7

3

14

3

The digestion of fats in the intestines is aided by

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Diffusion

Protection

Peptization

Emulsification

Which of the following statement regarding catalyst is not true?

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A catalyst remains unchanged in composition and quantity at the end of the reaction

A catalyst can initiate a reaction

A catalyst dose not alter the equilibrium in a reversible reaction

Catalysts are sometimes very specific in respect of reaction.

Isopropyl alcohol on oxidation forms

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Acetone

Ether

Ethylene

Acetaldehyde

When sulphur is boiled with Na₂SO₃solution, the compound formed is

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sodium sulphides

Sodiums sulphates

Sodium persulphate

Sodium thiosulphate

Inert pair effect plays an important role in case of

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F

Al

Si

Tl

Dehydration of glycerol give

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Propane

Propene

Acrolein

Benzene

BiCl₃on hydrolysis forms a white precipitate of

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Bismuthio acid

Bismuth oxychloride

Bismuth pentachloride

Bismuth hydroxide.

The IUPAC name of the compound having the formula (CH₃)₃C - CH = CH₂is

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1, 1-Dimethyl-3-butene

1, 1, 1-Trimethyl-3-propene

3, 3,-Dimethyl-1-butene

3, 3, 3,-Trimethyl-1-propene

Which one is primary alcohol?

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Buten-2-ol

Propan-2-ol

Butaon-1-ol

2, 3-Dimethylhexane-4-ol

Which of the following has least mass?

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2 gram atom of nitrogen

3 x 10²³atoms of C

1 mole of S

7.0 g of Ag.

Dolomite has the composition

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KCL.MgCL₂.6H₂O

Na₃AIF₆

CaCO₃.MgCO₃

CaCL₂.MgCl_2.6H₂O

If the solvent is inflammable for heating purpose we use

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Ice bath

Water bath

Wire gauze

Thermostat

The rate of reaction between A and B increases by a factor of 100, and when the concentration with respect to A is increased 10 folds, the order of reaction w.r.t. A is

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10

1

4

2

Water (H_2O) is liquid while hydrogen sulphide (H₂S) is a gas because

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Water has higher molecular weight

Hydrogen sulphide is a weak acid

Sulphure has high electronegativity than oxygen

Water molecules associate through hydrogen

The molal elevation constant is the ratio of the elevation in boiling point to

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Mojarity

Molality

Mole fraction of solute

Mole fraction of solvent

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