Question # 1

Which woody raw material is used for the manufacture of paper pulp?

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cotton

bagasse

poplar

rice staw

Which of following is primary pollutants

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N₂O

PAN

H₂SO₄

None of these

Molar mass of formic acid in benzene comes out to be

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64

46

32

92

Sponification is the hydrolysis of fats or oil with an/a:

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enzyme

me5tallic ion

acid

alkali

Which compounds is alicyclic in nature?

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Cyclobutane

Iso-bstand

n-Butane

Toluend

A covalent bond may be

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100% covalent

Partial ionic

100% ionic

Both a and b

Cellulose is the polymer of

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α-D-glucose

β-D-glucose

Fructose

None

Enthalpy of a system can be calculated by which of following relationship

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q=ΔΕ

q=m×S×∆T

q=pv

q=m×v×∆T

Amorphous solids:

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have sharp melting point

undergo clean cleavage when cut with knife

have prefect arrangement of atoms

can possesses small regions of orderly arrangement

H3O+ can't accept a Ip because

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it has positive charge

The central atom is not electron deficient

The shell of oxygen has reached its limit

it already has a coordinate bond

Glucose is converted into ethanol by the enzyme present in the yeast

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Urease

Zymase

Invertase

Sucrase

The addition of HCN to carbonyl compounds is an example of

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Nucleopihlic substituion

Electrophilic addition

Nueleophilic addition

Electrophilic substitution

Reaction of acids with alcohols is also known as

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Esterification

Saponification

Alkalization

None

Which one of the following reactions is not spontaneous

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Chlorofluorocarbon, CF₂CI₂, plays an effective role in removing O₃(ozone) in the stratosphere. Which reaction does not cause the depletion of ozone

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When rate of forward reaction is equal to rate of backward reaction, then the equilibrium established is called

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Chemical equilibrium

Static equilibrium

Dynamic equilibrium

None of these

Which statement about the following equilibrium in correct?

2SO_{2 (g)}+ O_2(g)---------------2sO_3(g)H= - 188.3 KJ mol-1

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T value of K_{p falls witha rise in temperate.}

The value of K_{p falls withincreasing pressure}

Adding V_2O₅catalyst increase the equilibrium yield of sulfur trioxide

The value of K_{p is equal to}K_p

The degenerate orbitals p-sub shell are

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2

3

5

7

By simply reacting Grignand's reagent with water we get

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An alkane

Higher alkane

An alkene

An alkyne

The nature of the positive rays depend on

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The nature of the electrode

The nature of the discharge tube

The nature of the residual gas

All of the above

If acetyl chloride is reducing in the presence of BaSO₄and Pd, then

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CH₃CHO is formed

CH₃CH₂OH is formed

CH₃COOH is formed

CH₃COCH₃is formed

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0.60

1.67

0.66

2.6

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