Question # 1

The reaction between fat and NaOH is called?

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Esterification

Hydrogenolysis

Fermentation

Sponification

Which one of the following is a water soluble vitamin

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Niacin

Riboflavin

Trypsin

Ascobic acid

Equal volume of all gases at same temperature and pressure contain number of molecules

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different

multiples

equal

in fractions

The highest melting point is observed by

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Butanoic acid

Propanoic acid

Pentanoie acid

HCI

The electrochemical reactions occurring at both the electrodes along with the electrolytic conduction constitute

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Oxidation

reduction

Redox reaction

electrolysis

What is the most common catalyst used in hydrogenation of oils?

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cobalt

nickel

tungsten

copper

Alkanes do not show geometrical isomerism due to

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Hyperconjugation

Resonance

Rotation around single hond

Restricted rotation around doubled bond

Fungicides are the pesticides which

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Kill plants

Kill herbs

Kill insects

Control the growth of fungus

The product of the molecular mass of repeating units and the D.P is called of polymer:

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Molecular formula

Empirical formula

Molecular mass

Empirical mass

Primary alcohols and aldehydes are oxidized to corresponding:

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Alkanes

Alkenes

Alkynes

Carboxylic acids

Naturally occuring lipids are called

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Fats

Protein

Steroids

None

The colour of transition metal complexes is due to:

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d-d transitions of electorns

Paramagnetic nature of transition

Ionization

Loss of s-electrons

Iodoform test is given by:

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Formaldehyde and Higher ketones

Formaldehyde

Acetaldehyde and methyl ketones

Acetaldehyde

Content of carbon in steel is:

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0.12 to 0.25%

0.25% to 2.5%

3.0 to 3.5%

4.0 to 4.5%

When sulphur is boiled with Na₂SO₃solution, the compound formed is

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Sodium sulphides

Sodiums sulphates

Sodium persulphate

Sodium thiosulphate

Copolymer is

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Nylon-6

Nylon 66

PMMA

Polyethene

Alkaline earth metals are usually

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Reducing agent

Oxidizing agent

Amphoteric

Acidic

Electronegativity order of alkyl halides is:

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Rl > RBr > RCl > RF

Rbr > RCl > RF >Rl

RCl > RF >Rl > RBr

RF >Ri > RBr >RII

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A strong reducing agent

A strong oxidising agent

Better oxidising agent than hydrogen

Less reducing agent than hydrogen

The difference between amount of heat actually released and that of calculated is called

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Bonding energy

Activation energy

Resonance energy

Transition energy

Gypsum is applied to the soil to provide calcium and

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Oxygen

Nitrogen

Phosphorous

Sulphur

Alkenes combine readily with electrophillic reagents such as halogens giving

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Haloalkanes

Gem-dihalides

Vicinal dihalides

Vinyl halides

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