Question # 1

Which one of the following liberates CO2 from an aqueous solution of NaHCO3.

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Acetic acid

Ethyl alcohol

Phenol

Acetyl chloride

Tincal is a mineral of.

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Al

B

Si

C

Cyanogen chloride reacts with ethyl magnesium bromide to give

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CH₃CH₂Cl

CH₃CH₂Br

C₄H₁₀⁺

CH₃CH₂CN

Which carbohydrate can be used for silvering of mirror.

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Glucose

Fructose

Maltose

All

The carbon atom of a carbonyl group is

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sp hybridized

sp²hybridized

sp³hybridized

none of these

The compound which can not be nitrated easily.

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Benzene

Nitrobenzene

Phenol

Toluene

A carbohydrate that cannot be acid hydrolysed is called.

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Monosaccharides

Di saccharides

Poly saccharides

Starch

Which one of the following complexes is chelate.

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Potassium hexacyanoferrate (II)

Diammine silver (I) Chloride

Tetracarbonylnikel (0)

Sodium dioxalatoplatinate (II)

Number of peptide bonds in tripeptide is

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1

2

3

4

Which one of the following elements exhibits s-inert pair effect.

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B

Al

Pb

Sc

Which is not an ore of iron

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haematite

Magnetite

limonite

Cassiterite

Geometrical shape of [CO(NH3)6Cl3

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linear

square planar

Octahedral

Trigonal hypyramid

In which group of periodic table is the element which has atomic number 14.

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II

IV

III

VI

A carboxylic acid contains

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A hydroxyl group

A carboxyl group

A hydroxyl and carboxyl group

A carboxyl and an aldehydic group

Micronutrients are required in quantity ranging from

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4g-40g

6g-200g

6kg-200kg

4kg-40kg

Starch is

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Monosaccharide

Disaccharide

Polysaccharide

Oligosaccharide

Across a period from left to right in the periodic table, the melting and boiling point.

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Decrease

Increase

Remain constant

First increase upto the middle of period and then decrease

Which of the following acids possess oxidizing and reducing properties.

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HCl

HNO2

HNO3

H2SO4

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