Question # 1

What is Glacial acetic acid

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Pure acetic acid

95% acetic acid

a mixture of acetic acid and glycerol

Vinegar

Total number of d-block elements are

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10

20

30

40

The temperature of digester is main tained at

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100^oC

160-180^oC

200^oC

200-240^oC

During the manufacturing process of cement the temperature of the decomposition zone goes up to.

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600 ^oC

900 ^oC

1000 ^oC

1200 ^oC

The state of hybridization of carbon atom in Ethyne

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sp

sp²

dsp²

sp³

How much fresh water is used for domestic purpose

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8%

23%

69%

100%

Saturated hydrocarbon are also called.

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Olefins

Acetylenes

Paraffins

Alicyclic

Which element burns in nitrogen atmosphere to form nitride.

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Mg

Al

Both a and b

None of these

The pH of unpolluted rain water should be

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5.00

5.60

6.50

7.00

Ranney nickel is prepared by reacting dilute NaOH solution with.

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Nickel

Brass

Nickel and aluminum alloy

Nickel oxide

Which chemicals used for detection of amino acids.

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NaOH + I2

Phenyl hydrazine

Ninhydrin

Benedict's solution

An element that has high ionization energy and tends to be chemically inactive would most likely to be

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an alkali metal

a transition element

a noble gas

a halogen

Which one is not electrophile

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BF3

SO3

AlCl3

NH3

All of the followings react with Fehling solution except

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CH2CH2CHO

CH3-CH2COCH3

HCHO

CH3-CHO

The flavor of octylacetate is

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Orange

Apricot

Banana

Jasmine

Which process is used to convert vegetable oil to vegetable ghee.

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Hydrolysis

Oxidation

Esterification

Hydrogenation

How many zones through which the charge passes in a rotary kiln

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4

3

2

5

A snake was preserved in a solution and was placed in biology laboratory. The solution is.

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De ionized water

Fehling solution

Formalin

Chloroform

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