Question # 1

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

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Coagulation

Aeration

Hydration

Dehydration

Carboxylic acid having two carboxyl group are:

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Mono-carboxylic acid

Di-carboxylic acid

Tri-carboxylic acid

Tetra carboxylic acid

Consider gas is measure in bars then the units of rate of reaction is

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Mole dm-3 sec

Bars sec

Mole dm-3 sec-1

Bars sec-1

The bond angle between any two sp hybrid orbitals is A.109.28°

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107.09°

120°

90°

80°

Enzymes are chemically

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carbohydrates

proteins

fatty acids

phospholipids

The nature of crystals formed due to London forces of interaction are

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molecular

metallic

ionic

covalent

A polymer of PVC having D.P 500 has molar mass:

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6300

63000

3150

31500

The cause of deviation form ideal behaviour is because

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the actual volume of gas molecules is not negligible

there is force of attraction between molecules of a gas

both a and b

none of these

Elements of II-A group are called alkaline earth metals due to the reason that

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they occur in earth only

they form divalent cations only

they have ns2 electronic configuration

their oxides and hydroxides are alkaline in nature and metals are present in earth crust

Molecular mass of PVC is (DP = 1200)

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63000

75000

75600

80,000

[Ti (H20)6]3+ ion isin colour.

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Yellow

Blue

Violet

Red

Saturated solution of NaCl on heating becomes

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Super saturated

Unsaturated

Remains saturated

None

Each of the following is true of white and red phosphours except that they

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Are both soluble in CS₂

Can be oxidized by heating in air

Consist of the same kind of atoms

Can be converted into one another

Azeotropic mixture of HCl and water has

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48% HCl

22.2% HCl

36% HCl

20.2% HCl

The number of atoms or molecules whose concentrations determine the rate of the reaction is called

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Molecularity

Order

Rate of reaction

Rate constant

Titanium is used as a catalyst in

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Hydrogenation

Dehydrogenation

Polymerization of P.E.

Oxidation of ammonia

Half life period of a reaction is inversely proportion to the initial concentration of the reactant, then order of reaction is

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Third order

Second order

Fist order

Zero order

The process in which one s and two p orbitals mix up with each other is called

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Sp-hybridization

Sp²-hybridization

Sp³-hybridization

Dsp²-hybridization

The solubility product of AgCl is 2.0 x 10^-3 mol² dm^-6 , The maximum concentration of Ag ion in the solution is :

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2.0 x 10^-10 mol dm^-3

1.41 x 10^-10 mol dm^-3

1.0x 10^-10 mol dm^-3

4.0x 10^-10 mol dm^-3

Wolf-kishner reduction is used for the reduction of

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Nitro compounds

Carboxylic acids

Carbonyl compounds

Olefins

The order of decreasing ease of reaction with ammonia is

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Anhydrides, esters, ethers

Anhydrides, ethers, esters

Ethers, anhydrides, esters

Esters, ethers, anhydrides

Alkanes normally have ______ hybridization

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Sp

Sp²

Sp³

d sp³

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