Question # 1

During incineration temperature range of non-rotating chamber is

Choose an answer

900-1000C°

650-1100C°

950-1300C°

700-900C°

In the formation of NaCl crystals from its aqueous solution, its cubic shape is changed to needle like when 10% urea is present as impurity, this phenomenon is called as

Choose an answer

habit of crystal

polymorphism

anisotropy

cleavage

The temperature below which a gas does not exist is called its

Choose an answer

Inversion temperature

Critical temperature

Neutral temperature

Curie point

Covalent bonds are

Choose an answer

directional

Bidirectional

Multidirectional

Non directional

Which one of the following gases has lowest density at room temperature:

Choose an answer

NH₃

Ne

N₂

CO

Half-lives required to convert 100% reactant to produet for a first order reaction are

Choose an answer

10

1000

100

Infinity

If absolute temperature of a gas is doubled and the pressure is reduced to one half, the volume of the gas will

Choose an answer

remain unchanged

increase four times

reduce to 1/4

be doubled

Which of the following are thermoplastic materials?

Choose an answer

PVC (poly vinyl chloride)

polystryences

polyethylene

all above

The rate of diffusion of a gas of molar mass 72 as compared to H₂will be:

Choose an answer

Same

6 times

1.4 times

1/6 times

Soap is formed when triglyceride reacts with

Choose an answer

Caustic soda

Soda lime

Lime

Caustic potash

What will be the pH of 1.0 mol dm -3 of H2X, which is only 50% dissociated

Choose an answer

1

0

2

Less than 0

Which of the following is the hardest metal among following

Choose an answer

Li

Na

Rb

K

The less reactivity of transition metal is due to

Choose an answer

High heats of sublimation

High ionization energies

Low heats of salvation

All these

Which of the following is not the reactions of lithium

Choose an answer

The amount of energy required to remove an electron from an atom of an element in the gaseous state is called

Choose an answer

Electron affinity

Electronegatively

Ionization energy

None of these

The formation of compounds like PF₅, BCI₃, SF₆indicates that

Choose an answer

These halides are ionic

These halides are covalent

They are Lewis acids

Octet rule not obeyed so the rule is not universal

The rate of reaction b/w two specific time intervals is called :

Choose an answer

Instantaneous rate of reaction.

Average rate of reaction.

Rate of a reaction.

Minimum rate of a reaction.

The reference calomel electrode is made from which of the following?

Choose an answer

ZnCl₂

CuSO₄

Hg₂Cl₂

HgCl₂

Which reaction is of condensation or addition elimination reaction?

Choose an answer

Ketol

Aldol

Cannizzaro

All of these

The solution of which acid is use for seasoning of food?

Choose an answer

Formic acid

Acetic acid

Benzoin acid

Butanoic acid

Coordination number of Pt in [PtCl (NO²) (NH³)⁴]^2-

Choose an answer

2^-

4

1

6

Plastics are a pollution problem because many plastics

Choose an answer

Are made from petroleum

Are very inflammable

Burn to produce toxic fumes

Decompose to produce toxic products

More Classes

Other Links

Chemistry General Science Test Medium Mode MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer