Question # 1

One of the following is a ionic solid. Which is that?

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Fe

KBr

Diamond

Cr

What is the weight of 10 litres of CO₂at 27°C and 2 atm?

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89.3 g

36.1 g

125 g

127 g

A molecule which contains two lone pairs and two bond pairs of electrons in valence shell of central atom, geometrical shape of molecules will be

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Tetrahedral

Trigonal pyramidal

Angular

Linear

In homocyclic compounds the ring consists of

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Carbon and oxygen atoms

Carbon and nitrogen atoms

Only carbon atoms

Carbon atoms with one hetero atom

Which of the folowing compound is expected to be colored

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Na2SO4

ZnCl2

MgF₂

CuF₂

The composition mixture of clay and lime stone in a raw material is:

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75% limestone & 25% clay

15% limestone & 55% clay

25 limestone & 75% clay

55% limestone & 15% clay

What is true for a molecule with standard geometry

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It lacks a Ip

It can't be a donor

It can be an acceptor

All

How many isotopes are present in palladium

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Two

Four

Six

nine

Hydrolysis of alkyl nitriles gives:

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Alkane

Alkyl halide

Alkyl nitride

Minerals acids & Alkalies

Which of the following statement about graphite is not true?

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The coordination number of carbon atoms is 4.

the carbon atoms are arranged layers.

the layers in graphite are attracted to each other weak forces.

the corbon atoms use only three of their four outer electrons for covalent bonding.

C₆H₁₂O₆is molecular formula of:

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Glucose

Dextrose

Fructose

All of these

Nylon, 6,6 is a condensation polymer of

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Adipic acid and glycol

Phthalic acid and glycol

Adipic acid and hexaethylene diamine

Pthalic acid and hexaethylene diamine

The order of dehydration of alcohol

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10> 20> 30

10> 30> 20

20> 30> 10

30> 20> 10

Select from the following the one which alcohol

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Solvay process is used in the manufacture of

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Na₂CO₃

NaHCO₃

CaCl₂

All

N-atom forms three covalent bonds, its electronic configuration is

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Which of the following hydrides has the lowest boiling point?

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H₂O

H₂S

H₂S3

H₂Te

The shape of the molecule SF₂Cl₂is

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Trigonal bipyradmidal

Cubic

Octahedral

Tetrahedral

The use of tetra ethyl lead in petrol as an efficient antiknock agent is being discouraged. Which reason is correct

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It is costly

It damages the engine

Pb is difficult to obtain in bulk quantities

The combustion product, lead, causes air pollutions

Which of the following decolorized Br₂-water

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Methane

Ethane

Ethene

Propane

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

The oxides of which of the following elements will be acidic in character

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Mg

Rb

Li

Cl

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