Question # 1

Fluorine molecule is formed by

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The axial p-p overlap

The sidewise p-p overlap

The axial s-p overlap

The overlap of two sp²hybrid orbitals

The reaction between fat and NaOH is called:

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Esterification

Hydrogenolysis

Fermentation

Sponification

What will be the weight of deposited silver on passing 965 coulombs of electricity in solution of AgNO₃?

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1.08 g

2.16 g

0.54 g

0.27 g

Which statement is true for Na and Na⁺

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Size of Na is smaller than Na⁺

Size of Na is greater than Na⁺

Both have same properties.

Both have equal sizes.

The raw materials for the manufacture of urea fertilizer is

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Hydrogen and ammonia

Steam, methane, ammonia

Methane and air

None of these

When chloroform is boiled with NaOH, it gives

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Formic acid

Trihydroxymethane

Acetylene

Sodium formate

The organic compounds containing Ph--OH group are called:

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Phenol

Aldehyde

Ketones

Carboxylic acids

Oxalic acid oxidizes to:

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CO

CO₂

Oxalates

None of these

Which of the following is the repeating monomeric unit in cellulose

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Sucrose

Maltose

Cellobiose

Glucose

A condensation polymer among the following is

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Dacron

PVC

Polysterene

Teflon

Rate law of an equation is obtained :

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From a balance equation.

Can be calculated theoretically as well as determined experimentally.

It is only calculated theoretically.

Experimentally.

When of the following is isolelectronic with krypton

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Ca⁺⁺

Al⁺⁺⁺

Br^-1

I^-1

5-d series is in the period :

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4th

5th

6th

7th

Which of the followingα-Amino acids has basic R-group

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Proline

Glutamic acid

Histidine

Valine

Electrochemical series is a list of element S arranged into the increasing order of their

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Standard oxidation potential

Standard reduction potential

Cell voltage

Ionization potential

Benzene does not undergo polymerization and it is also resistant to

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Reduction

Oxidation

Alkylation

Ozonolysis

The trade name of polytetrafluoroethylene (PTFE) is

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Teflon

PVC

Terelene

Polyester

Although hydrogen resemble with the elements of group lA, IVA and Vll but it is usually placed in

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Group IA

Group IV A

Group VII

Group VIII

The wave number of the line emitted is 109.678 x 10⁵m^-1in the Lyman series when electron transition occurs

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The malt-sugar in the presence of yeast or invertase gives

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Fructose

Glucose

Lignin

Alcohol

Which if the following has the highest freezing point at one atmosphere

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0.1 M NaCI

0.1 M sugar solution

0.1 M BaCI₂

0.1 M FeCI₂solution

The fourteen elements following actinium are known as

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Lanthanones

Lanthanides

Rare earths

Actinides

Which one of the following substance is no used as drying agent in desiccators

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Silica gel

CaCl₂

Phosphorous

NaCL(50%)

The addition of HCN to carbonyl compounds is an example of

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Nucleopihlic substituion

Electrophilic addition

Nueleophilic addition

Electrophilic substitution

β-D-glucose is a monomer for

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Strach

Cellulose

Glycogen

Protein

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High temperature and low pressure

Low temperature and low pressure

Low temperature and high pressure

High temperature and high pressure

What mass of NaOH is required to prepare 2.5 dm³of 1.5 M NaOH solution

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130 g

140 g

150 g

160 g

Hemoglobin contains nearly:

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10,000 atoms

100 atoms

1000 atoms

1 atom

Which halide among the following is used as methylating agent?

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CH₃l

C₂H₅Cl

C₂H₅Br

C₆H₅Cl

A complete chemical characterization of a compound must include

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Qualitative analysis

Chemical analysis

Quantitative analysis

Both a and c

The number of moles of NH₄CI dissolved in 500 cm³of its 15%, W/N solution is

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1 mole

1.4 mole

2.0 mole

2.4 mole

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