Question # 1

Sponification is the hydrolysis of fats or oil with an:

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alkali

base

enzyme

metallic ion

what is the exact value of angle in BF3

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90

104.51

119.5

120°

Final product of hydrolysis of nitrile is

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Ketone

Alcohol

Aldehyde

Carboxylic acid

Which ion is most polarising?

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AI³⁺

Ba²⁺

Mg²⁺

Na⁺

Abumins and globulins are defined as

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Derived protein

Conjugated protein

Fibrous protein

Simple Protein

What is the effect of polluted air on environment:

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ozone

acid rain

global warming

smog

Which of the following compound have empirical formula, but no molecular formula

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H20

C6H6

H₂O₂

NaCl

Which of the following is not the property of liquid crystal

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anisotropic

isotropic

three dimensional arrangement

fluidity

_{What is name of hydrated variety of quartz?}

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Rose quartz

Smokey quartz

Silica

Opal

Pressure of 1Nm^-2 is equal to

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One bar

1 psi

One pascal

One atmosphere

Calendar stock is process in paper making in which

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Moisture is removed

Pulp is spreaded over fabric or screen

Paper thickness is removed

Paper is wounded in the form of reel

Alcohol reacts with halogen acid to produce

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Alkyl halides

Aldelydes

Ketones

Alkanes

Which of the following yield both hydrogen and chlorine on electrolysis:

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Electrolysis of acidified water.

Electrolysis of molten NaCl

Electrolysis of aqueous NaCl

Electrolysis of saline water

NaHCO₃is commonly called

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Soda ash

Baking soda

Washing soda

None of these

Which of the following elements have the largest radius

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F

Cl

Br

l

Which one of the following is used as antifreeze in the radiator

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Methanol

Ethanol

Ethylene glycol

Glycerin

The electrolysis of CuSO₄aqueous solution using copper as cathode as well an anode the substance which deposits at cathode is

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H₂SO₄

Oxygen

Copper

Hydrogen

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Rate = k[FeCl₃] [Kl]²

Rate = k[Fe⁺³][Cl^-1] [Kl]

Rate = k[Fe⁺³] [Cl^-1][K;]

Rate = k[Kl]³[FeCl₃]°

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Equal volumes of N₂and H₂are reacting

Equal masses of N₂and H₂are reacting

The reaction has stopped

The same amount of ammonia is formed as is decomposed into N₂and H₂

Which species represented by the following formula has the largest radius

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P^3-

Cl^-

A_r

K⁺

Chlorofluorocarbon, CF₂CI₂, plays an effective role in removing O₃(ozone) in the stratosphere. Which reaction does not cause the depletion of ozone

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The number of unpaired electrons in the p-subshell of oxygen atom

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1

2

3

4

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