Question # 1

In a saturated solution of AgCl, the molar concentration of Ag+ and Cl- is 1.0x10(-5)M each. What is the value of Ksp

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1.0x10(-5)

1.0x10(-15)

0.1x10(-5)

1.0x10(-10)

Proteins are the polymers of amino acids having

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NH₂ group only

OH^-group only

NH₂andOH^- group

NH₂and COOH group

A basic buffer solution can be prepared by mixing?

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Weak acid and its salt with strong base

Weak base and its salt with strong acid

Strong acid and its salt with weak base

Strong base and its salt with strong acid

Half-lives required to convert 100% reactant to produet for a first order reaction are

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10

1000

100

Infinity

The highest temperature in which a substance can exist as a liquid is called its

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Absolute temperature

Critical temperature

Maximum temperature

Body temperature

During thunderstorms, water dissolves

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Dust particles

HCl

Nitric acid

Clouds

A polymeric substance that is formed in the liquid state and then hardened to a rigid solid is called a

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fibre

plastic

varnish

polyamide resin

How many esters are possible for C2H8O2

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3

2

4

5

Which pair of following pair is metalloid?

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Antimony and bismuth

Phosphorous and arsenic

Nitrogen and phosphorous

Arsenic and antimony

Collagen contains high percentage of

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Glycine

Tryptophan

Phenyl Alanine

Serine

Which of these polymers is an addition polymer?

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nylon 6,6

Polystyrene

terylene

epoxy resin

The lA elements are called

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Alkaline earth metal

Alkaline metals

The halogens

The inert gases

Acetone reacts with HCN to form a cyanohydrin. It is an example of

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Electrophilic addition

Electrophilic substitution

Nucleophilic addition

Nucleophilic substitution

β-β- dichloroethyle sulphide is commonly known as:

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Mustared gas

Laughing gas

Phosgene gas

Bio gas

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Rutherford's experiment led to the discovery of

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Nucleus

Electron

Proton

alpha particle

Which of the following reagents is used to distinguish between methanoic acid and ethanoic acid?

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Amm. silver nitrate solution

Neutral ferric chloride

Sodium hydroxide solution

Sodium carbonate solution

Ifk_cof a reaction productis verylarge, it indicates that equilibrium occurs :

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With the help of a catalyst.

With no forward reaction.

At a low product concentration.

At a high product concentration.

The hydrocarbons having double bonds normally end with suffix

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Ane

Ene

Yne

Oic

Theα-carbon of 19 out of 20α-amino acids found in protein is chiral or asymmetric. Hence they are optically active. Only one of the 20α-amino acids is not optically active which one is the

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Proline

Glycine

Hitidine

Alanine

Rutherford's atomic model suggests the existence of

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Atom

Nucleus

alpha particle

Measons

During the preparation of alkynes the active metals that react with tetra halo-alkanes are

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Zn

Mg

Both a and b

None

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