Question # 1

Chlorination of water is effective for

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Killing pathogens

Removing dust

Removing hardness

Increasing oxygen content

Amount of product formed increases with time, this statement is true for reactions-------with kinetics

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1s order

3rd order

zero order

Any order

If the rate of the reaction is equal to the rate constant, the order of the reaction is

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3

1

0

2

Which of the following element will have strongest van der Waal force of attraction between its molecules?

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nitrogen

hydrogen

oxygen

chlorine

Optimum PH for enzyme pepsin is

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01

2

05

6.5

Areal gas obeying Van der Waal's equation will resemble ideal gas ilf the:

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both a and b are large

both a and b are small

a is small and b is large

a is large and b is small

Adipic acid and Hexamethylenediammine polymerize to give

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Acrylic resins

Plastic fiber

Nylon-6, 6

None

Which of the followings has electronic configuration of Ar in +3 oxidation state

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Sc

Mn

Ti

Zn

Leachate contains:

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fatty acids

Bacteria

Heavy metals

All of these

How many isotopes are present in palladium

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Two

Four

Six

nine

Macromolecular hypothesis acceptance due to efforts of standinger came about in:

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1910

1920

1930

1940

The solid remained on filter paper during the filtration is called the :

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Substance.

Residue.

Undue.

Filtrate.

UV radiations bring about

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Skin cancer

Mouth cancer

Lung cancer

Liver cancer

The geometry of 4 sp³hybrid orbitals on an atom is

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Square planar

Tetrahedral

Trigonal planar

Linear

The organic compounds containing Ph-OH group are called:

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Phenol

aldehyde

Keton

Carboxylic acids

Cannizzaro's reaction in not given by

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Formaldehyde

Acetaldehyde

Benzaldyhyde

Trimethylacetaldehyde

Which can be used for dehydration of alcohol

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P₄O₁₀

H₂SO₄

H₃PO₄

All of them

Which property is not present in lipids?

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Liquid

Solid or semi solid

Soluble in water

Form emultion

Tryosine was isolated from

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Butter

Cheese

Oils

Fats

Charge of an electron is:

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1.6 x 10^-19 C

9.1 x 10^-34 C

1.7588 x 10¹¹ C

6.62 x 10^-34 C

Alkyle magnesium halides are known as

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Simon-smith reagent

Tollen's reagent

Grignard's reagent

Barford's reagent

The function of salt bridge in the galvanic or voltaic cell is to

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Carry out oxidation at anode

To carry out reduction at cathode

Carry out electrolysis

To prevent the net charge accumulation in either of the half cells

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