Question # 1

Polyamide jinkage is present in

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Nylon

Silk

Protein

All of these

Codon for amino acid glycinc is not represented by base pair

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GCA

GGC

GGA

GGU

The forces which holds the atoms together in a molecule is called

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Ionic bond

Covalent bond

Co ordinate bond

Chemical bond

The splitting of H2O can be carried out through

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Photolysis

Electrolysis

Dialysis

Hydrogenation

The denationalization involving C - H sigma bond electrons is known as .

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Conjugation

Hyperconjugation

Mesomerism

Resonance

The bond order for BO molecule is.

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2.5

3.0

2.0

3.5

Which of the following ahs non zero dipole moment.

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NH3

SF6

BF3

CO2

The action of all the relations of all the organism to their environment is called

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Biology

Botany

Ecology

Archiology

Any substance which has solidified from the liquid state with crystallization is known as

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Steel

Fibre

Glass

Asbestos

The colour of Ni2+ ion is.

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Blue

Green

deep green

Orange

H-Bond has more energy than the van der Waals forces i.e.

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1.0 kcal/mole

2.0 k cal/mole

10.0 kcal/mole

20. 0 kcal mole

Monomer of natural rubber is

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1,3-Butadiene

2-Methyl -1,3-butadiene

1,2 -Butadiene

1,3 - Pentadiene

The number 7.65 is rounded to.

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7.6

7.7

7.5

7.8

The maximum oxidation shown by managanese is.

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+2

+7

+4

+5

Which type of polymer the Nylon -06 is

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Polyamide

Polyester

Addition

Homopolymer

Which of the following gas form weakly acidic sulphurous acid

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SO2

SO3

NO2

NO

Consider to violet colored compund.[Cr(OH)2)6 Cl3 and the yellow compound. [Cr(NH3)6]C;2 which of the following statements is false.

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Both chromium metal ions are paramagnetic with 3 unpaired electrons.

[Cr(NH3)6)3+ is calculated directly form the energy of yellow light

For [Cr(OH)2)6]3+ is less than for [Cr(NH3)6]3+

The two complexes absorb their complementary colors.

The volume of given mass of gas at constant pressure is directly proportional to the absolute temperature.This is a statement of.

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Charles's law

Boyle's law

Avogadro's law

Dalton's law

Which of the following should have the largest dipole moment.

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Carbon tetrachloride

Cis-stibeue

Trans-atibeue

Cis-dichlorocthylene

Which of the following statements is correct.

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A sigma bond is weaker than a pi pond

There are four coordinate bonds in the Lewis structure of NH4+ ion.

The 1 covalent bond is directional in nature

A single bond between the two atoms cannot be re bond.

Petrol can be saved by

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Driving at a constant and moderate speed

Ensuring correct type pressure

Switching off the engine at traffic lights

All of these

The shape of SO₄^2-ion is.

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Tetrahedral

Trigonal planar

Square planar

Octahedral

Among the elements of second period the element with highest melting point belongs to group.

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1

14

17

18

Chlorination of benzene with excess chlorine in the presence of FeCl3 as Lewis acid gives.

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Chlorobenzene as a major product

o-dichlorobenzene as major product

p-dichloro benzene as an only product

A mixture of 0- and p- dichloro benzene

Which of the following solids is a better conductor of electricity.

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Pore NaCl cyrstal

Diamond

Graphite

Marble pieces

Which of the following reactions does not take place with light radiation.

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Oxidation

Reduction

Polymerization

Double displacement

The noble gases which does not I do not form any clathrates is.

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He

Ne

Argpm

Both He and Ne

Ingold's isoprene rule states that in tepenoids isoprene units are joined.

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Head to tail

Head to Head

Tail to Tail

In a random order

When some quantity of electricity is passed though two electrolytic cells. The ratio of the mass of the products obtained at the cathode is the same as the ratio of their

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Densities

Atomic masses

Equivalent masses

Atomic numbers

The temperate of a gas below which only the gas cools when allowed to expand is know as.

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Inversion temperature

Ideal temperature

Critical temperature

Joule Thomaon temperatu4re

For dilute solutions colligative properties depend on.

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The number of the particles of the solute and nature of solvent.

The number of the solute particles and on their nature

The number of the solute particles and nature of solute and solvent

The number of the solute particles and irrespective of the nature of the solute and solvent.

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