Question # 1

SO₂makes ___________ acid rains

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carbonic acid

Sulfuric

Nitric acid

All of these

Which pair of the gases doesn't obey Dalton's Law of partial pressures

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H₂and O₂

N₂and O₂

H₂S and H₂

NH₃and HCl

Caseinogen is

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Simple protein

Derived protein

Phosphoprotein

Rich in sulfur containing amino acids

When a compressed gas is allowed to pass through a nozzle of a jet into a region of low pressure, it produces

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cooling

vaporization

fusion

expansion

At higher temperature isotherm of Boyle's law moves away from both axis, is due to increase in:

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pressure

No. of moles

Volume

All

The proteins which are derived by conjugated proteins are called as

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Simple protein

Complex protein

Derived protein

None

Liquids are less common than:

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Solids.

Plasmas.

Gases.

All of above.

Which of the following factors does not affect the SN1 rate is

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Nucleophilicity of the attacking nucleophile

Stability of the carbonium ion

Solvent system

The nature of leaving group

Substance which is formed as well as consumed during a chemical reaction and have temporary existence.

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Reactant

product

Catalyst

Intermediate

One Pascal is equal to

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1 Nm^-2

1 Nm

1 Nm^-1

1 Nm²

HOCl is a compound:

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Polor inorganic

organic

Ionic

covalant

Linear geometry is present in:

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Sp³

Sp²

Sp

D²sp³

Aldehyde and small methyl ketones form crystalline ______ ppts with saturated sodium bisulphate solution

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White

Red

Yellow

None of these

Which element has 4 unpaired electrons in 3d-orbital

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Chromium - 24

Manganese - 25

Iron - 26

Cobalt - 27

Allyl chloride on dehydrochlorination gives

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Propadiene

Propylene

Allyl alcohol

Acetone

The general formula for alkenes is

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C_nH_2n+1

C_nH_2n+2

C_nH_2n

C_nH_2n-2

Rutherford's experiment led to the discovery of

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Nucleus

Electron

Proton

alpha particle

A transition metal complex can be recognized by various terms. Which is not the proper term

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Central metal ion

Coordination number

Ligand

Geometry of complex

Which of the following has ester linkage?

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Nylon

Bakelite

Terylene

PVC

The wave number of light emitted by a certain source is 2 x 10⁵m. The wavelength of this light will be:

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500 NM.

500 M.

200 NM.

5 x 10⁷m

Which of the following in incorrect?

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FelCl₃is used in the detection of phenols

Fehling solution is used in the detection of glucose

Tollen's reagent is used in detection of unsaturation

NaHSO₃is used in the detection of carbonyl compounds

The oxidation number of Ni in [Ni(CO)₄] is

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+1

0

+4

-4

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