Question # 1

Amorphous solids:

Choose an answer

have sharp melting point

undergo clean cleavage when cut with knife

have prefect arrangement of atoms

can possesses small regions of orderly arrangement

An instrument which is used to measure the pressure of a gas is called:

Choose an answer

barometer

photometer

stalagmometer

viscometer

Stronger the oxidizing agent, higher is

Choose an answer

Redox potential

Standard reduction potential

Reduction potential

_{Oxidation potemial}

Which of the following compound shows the geometrical isomerism

Choose an answer

2-butene

2-butyne

2-butanol

Butanol

Boiling point of water remains 100°C although heat is continuous supplied. it is because

Choose an answer

decomposition of water takes place

hydrogen bonding is increased

external atmospheric pressure is not changing

kinetic energy of H₂O molecules is increasing

The crystal system are of

Choose an answer

7 types

10 types

5 types

8 types

The enthalpy change for the reaction C2H2 + 5/2 O2 --------> 2CO2 + H2O is known as enthalpy of

Choose an answer

Fomation of CO2

Fusion ofC2H4

Combustion of C2H4

Vaporization of C2H2

The rate of reaction for a reaction is 30 mol dm-3sec-1 if the product of concentration of 10.reactant is unity the specific rate constant is

Choose an answer

25

2.5

30

15

The elements like N,P,K added into the large amount in soil are called:

Choose an answer

Basic elements

Additives

Macronutrients

Micronutrients

Optimum temperature for enzyme activity is

Choose an answer

125°C

37°C

40°C

100°C

Malt sugar is converted into glucose by an enzyme invertase present in yeast. The process is known as:

Choose an answer

dehydration

condensation

fermentation

oxidation

Alcohols react with carboxylic acid to produce the class of compounds known as

Choose an answer

Grignard's reagent

Esters

Amides

None of these

A half reaction can be defines as :

Choose an answer

It always occurs at cathode.

Involves only half of a mole of electrolyte.

Occurs at one of the electrode.

Goes only half way to completion.

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

Choose an answer

N₂O₄is limiting reactant

N₂H₄is the limiting reactant

Reactants are completely converted to the products

Reactions is reversible

According to Lewis concept ethers behave as:

Choose an answer

Acid

Base

Acid as well as a base

None of them

Determination of atomic masses and invention of system of writing symbols was made by:

Choose an answer

J. Berzelius

Democritus

Dalton

None of above

When a compound X is passed through a dilute alkaline solution of KMnO₄the pink colour of solution is discharged. The compound X is possbibly

Choose an answer

Methane

Ethane

Ethene

Benzene

β-β- dichloroethyle sulphide is commonly known as:

Choose an answer

Mustared gas

Laughing gas

Phosgene gas

Bio gas

What is the nature of Al₂O₃

Choose an answer

Acidic

Basic

Amphoteric

Neutral

Which statement is not true. A solution is a homogeneous mixture of

Choose an answer

Two ionic substance like NaCl and HCl

Two molecular substances sugar and water

A solute and a solvent 1% NaHCO₃in water

NaCl and sand

Which is not nitrogeneous fertilizers?

Choose an answer

(NH₄)₂HPO₄

NH₄NO₃

Urea

Calcium phosphate

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