Question # 1

Cyclobutane structure is categorized under

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Aromatic compounds

Aliphatic compounds

Alicyclic compounds

Heterocyclic compounds

Which of the following does not obey general formulas of monosaccharide

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Mannose

Fructose

Glucose

Deoxyribose

The temperature in the incineration process has a range:

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900 to 1000°C

650 to 1100°C

950 to 1300°C

500 to 900°C

One of the following is not type of polymer

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homopolymer

copolymer

heteropolymer

terpolymer

NO. of naturally occuring aminoacids is

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10

20

30

40

Enzymes have been classified on the basis of

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protein structure

prosthetic groups

type of reaction they catalyse

bonding in them

In which of the following a re dipole-dipole interaction present?

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molecules of CCL₄

molecules of solid iodine

molecules of NH₃

atoms of the helium gas

The compound that reacts the slowest in Lucas test

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1-Pentanol

sec-butyl alcohol

3-Pentanol

ter- butyl alcoho

Furan is a compound

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Acyclic

Alicyclic

Heterocyclic

non-aromatic

Equal masses of CH₄and O₂are mixed in a 10 dm³container at 25°C. The partial pressures of CH₄and O₂are in the ratio of

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1 : 2

2 : 1

1 : 1

2 : 3

Stalagmometer is used to measure

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the resistance to flow of a liquid

capillary action of a liquid

Meniscus of the liquid

surface tension of the liquid

HNO₂acts as an/a

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Acid

Oxidizing agent

Reducing agent

All the three

Identify the compound which has a bond angle of 109.5°

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Ethyne

Ethere

Methane

Benzene

Pauli's principle is applicable to

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Degenerate orbits

Two electrons in the same orbital

One electron

None

A polymer may be

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Linear

Branched

Cross linked

All of these

Which period starts from ₁₁Sc to ₃₀Zn ?

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First Period

Second Period

Third Period

4th Period

The number of unpaired electrons in Mn²⁺is

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5

4

3

2

Alkanes are least reactive towards:

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Acids and bases

Reducing agents

Oxidizing agents

All of these

Which one of the following elements occurs free in nature?

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N

P

As

Sb

Which of the following is a method of converting a unsaturated ketone into unsaturated hydrocarbon?

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Aldol condensation

Reimer Tiemann reaction

Cannizaaor's reaction

Wolf-kishner reduction

By simply reacting Grignand's reagent with water we get

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An alkane

Higher alkane

An alkene

An alkyne

Which set of hybrid orbitals has planar triangular shape

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sp³

sp

sp²

dsp²

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