Question # 1

The number of peptide bonds in dipeptide is

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0

1

2

3

Which is not a calcarious material

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Clay

Limestone

Marble

Chalk

When ethyl alcohol is heated with conc. H2SO4 it produces ethene. The temperature required is as proximately

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100 ^oC

78 ^oC

Above 200 ^oC

140- 170 ^oC

Rectified spirit contains alcohol about

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80%

85%

90%

95%

Which one of the following is not an alkali metal

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Francium

Caesuym

Rubidium

Radium

Formula of marsh gas is

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CH₄

C₂H₆

C₃H₆

C₄H₁₀

Which is not coloured ion

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SO4^-2

MnO4-3

CrO4^-2

Cr2O7^-2

The product of fermentation of sucrose is

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Ethanol and H2O

Ethanol and CO

Ethanol and CO2

Glucose and CO2

The substance that retard the activity of enzyme is called.

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Co enzyme

Epo enzyme

Activity

Substrate

Chile saltpeter has the chemical formal

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NaNO₃

KNO₂

Na₂B₄O₇

Na₂CO₃.H₂O

-------------------- is Alcohol in the following

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CH₃.CH₂.OH

CH₃.O.CH₃

CH₃COOH

CH₃.CH₂.SH

The percentage of nitrogen in urea is.

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36%

46%

56%

65%

Which elements are needed for healthy growth of plants

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N,S,P

N,Ca,P

N,P,K

N,K,C

The reaction between fat and NaOH is

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Estrification

Hydrogenolysis

Fermentation

Saponification

The nature of lysine amino acid is

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Acidic

Basic

Amphoteric

Natural

In a period, from left to right in the periodic table, the size of atom generally.

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Increases

decreases

Remains constant

First increase upto the middle of period and then decreases

Ethanol can be converted into ethanoic acid by.

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Hydrogenation

Hydration

Oxidation

Fermentation

Vinyl acetylene combines with HCl to form

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Polyacetylene

Benzene

Chloroprene

Divinyl acetylene

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