Question # 1

If temperature is 73K and volume is 146 cm3 then calculate the value of K=V/T

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5

4

3

2

An alcohol is converted to an aldehyde with same number of carbon atoms as that of alcohol in the presence of K2Cr2O7/H2S04 the alcohol is

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CH3C(CH3)2OH

(CH3)3COH

CН3СН2СН2OH

(CH3)2CHOH

Neutralization of acid-base is

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Spontaneous

Exothermic

Non spontaneous

Both "a" and "c

D-block elements are also called

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Non-typical transition element

Outer transition elements

Abnormal transition elements

Inner transition

In a period the atomic radii

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increase

decrease

remain same

first increase, then decreased

Which of the following statement is correct if the intermolecular forces in liquids A,B and C are in the order A < B < C?

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B evaporates more readily than A

B evaporates less readily than C

A and B evaporates at the same rate

A evaporates more readily than C

The crystal system are of

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7 types

10 types

5 types

8 types

Oxidation of secondary alcohol produces

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Aldehyde

Ketone

Alkyl halide

Ester

Gases are good conductor of electricity at

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Low temperature

Low pressure

High pressure

Low temperature and high pressure

Oxidation state of Mn' in KMnO4. K2MnO4, MnO2 and MnSO4 is in the order

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+7.+6.+2,+4

+6,+7,+2,+4

+7. +6.+4.+2

+4, +6, +7,+2

Which of the following shows group IIIB

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Zn, Cd. Hg

Cu. Ag. Au

Sc. Y. La

Ni. Pd. Pt

Which of the following compounds will form a hydrocarbon on reaction with Grignard reagent

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A ketone

An aldehyde

An ether

Water

Plastics are a pollution problem because many plastics:

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Are made from petroleum

Are very inflammable

Burn to produce toxic fumes

Decompose to produce toxic products

When 3p orbital is complete, the entering electron goes into

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4s

3d

4p

4f

Inn which of these processes are small organic molecules made into macromolecules?

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The cracking of petroleum fractions

The fractional distilation of crude oil

the polymerization of ethane

The hydrolysis of proteins

Units of Kw are

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Mole dm^-3

Mole²dm^-3

Mole²dm^-6

Mole²dm^-3

Acetamide is prepared by

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Heating ammonium acetate

Heating methyl cyanide

Heating ethyl acetate

The hydrolysis of methyl cyanide

The amount of energy required to remove an electron from an atom of an element in the gaseous state is called

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Electron affinity

Electronegatively

Ionization energy

None of these

Minamata disease is due to pollution of

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Organic waste into drinking water

Oil spill in water

Industrial waste containing mercury into fishing water

Arsenic into the atmosphere

Saturated solution of a solid is prepared at a constant temperature. 100 cm³of this saturated solution is evaporated in a china dish. The mass of the residue is called

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Azetropic mixture

Solubility

Solubility product

Equilibrium constant

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-1.10 V

+1.10 V

-0.42 V

+0.42 V

Find the magnetic moment of a divalent ion in aqueous solution if its atomic number is 25

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3.0 BM

4.9 BM

5.9 BM

6.9 BM

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