Question # 1

On the basis of intermolecular forces diamond is a

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ionic solid

covalent solid

metallic solid

molecular solid

One mole of SO2 contains

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6.022 x 10(23) atoms of oxygen

6.022x 10 ê23 atoms of sulfur

18.1x 10 (23) molecules of SO2

4 g molecule of SO2

Amino acid which has cyclic structural is

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Proline

Valine

Alanine

Glutamic acid

The number of reacting molecules whose concentration change during reaction is called

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Activated molecule

Rate of reaction

Order of reaction

half-life

L-asparginase is helpful in treatment of

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skin disease

blood cancer

heart failure

obstructive jaundice

In the body, carbohydrates are broken down into

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Glucose

Fatty acids

Amino acids

Nucleic acid

Phenol can be diatingushed from ethyl alcohol by all of the following reagents except

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lodoforrn test

Na

Br2 /H2O

NaOH

The unit of pressure ______ is commonly used by meteorologists

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mm of Hg

Kilopascal

Millibar

Pound per square inch

The volume of given mass of gas is directly proportional to absolute temperature when pressure is kept constant this is called

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Boyle's law

Charles's law

Graham's law

Dalton's law

Which is not considered as pollutant

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O₃

CO₂

NO₂

SO₂

Detergents are:

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synthetic products

natural product

both a and b

none of the above

Ethylene can be prepared in the laboratory by heating together ethyl alcohol and

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HCI

Phenol

HF

H₂SO₄

Reation of which with Grignard's reagent gives primary alcohol:

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Formaldehyde

Aldehyde

Ketones

Acetone

The compounds or species in search of electrons are called

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Elctrophiles

Nucleophile

Nitrities

Bases

The region of earth capable of supporting life is

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Hydrosphere

Lithosphere

Biosphere

Atmosphere

During electrolysis, the reaction that takes place at cathode is :

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Reduction

Both (a) and (c)

Oxidation

No reaction occurs

The credit of discovering neutron goes to

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Rutherford

Langmuir

Chadwick

Austen

Catalytic oxidation of alkanes is used for the preparation of

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Adehydes

Fatty acid

Carbonyylic acids

Ketones

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1 erg of energy corresponds to

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6.02 x 10²³J/mol

6.02 x 10¹⁶J/mol

1 erg/mol

10^-7J/mol

Thre rate of S_N2 reaction depends upon the

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Concentration of alkyl halides

Concentration of nucleophile

Concentration of alkyl halides and nucleophile

None of the above

f-Block elements are also called

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Non typical transition elements

Outer transition elements

Normal transition elements

Inner transition elements

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