Question # 1

Addition of washing soda removes

Choose an answer

Softness of water

Temporary hardness of water

Permanent hardness of water

Hydrogen from water

Which of the following is a simple protein

Choose an answer

Albumins

Legumin

Callogen

All

Water has high boiling point which is due to

Choose an answer

weak dissociation

hydrogen bonding

high specific heat

high dielectric constant

Which one of the following is the most abundant organic substance found in nature?

Choose an answer

fructose

starch

glucose

cellulose

Among the following the polycyclic aromatic compound is

Choose an answer

Styrene

Naphthalene

Toluene

Acetophenone

A polymer of polyvinyl chloride with DP 1000 has molecular or molar mass:

Choose an answer

630

6300

63000

630000

The pH of ideal buffer is

Choose an answer

10

7

Less than 7

0

Total heat content of a system is called

Choose an answer

Internal energy

Entropy

Enthalpy

All of these

Which of the following protien is found in bone

Choose an answer

Keratin

Ossein

Mucin

Actin

Energy of atom in compound is

Choose an answer

Higher than individual atom

Lower than individual atom

equal to individual atom

Impossible to predict

^{Reaction of ethyl bromide with ammonia}

Choose an answer

Completes in a single step

Completes in two steps

Continues till N is left with no lone pair

is reversible

Which of the following isoelectronic ions has the lowest ionization energy?

Choose an answer

K⁺

Ca²⁺

Cl^-

S^2-

In molecules kinetic and potential energies are:

Choose an answer

Definite

Moderate

Indefinite

None of above

A fuel has the same knocking property as a mixture of 70 isooctane (2, 2, 4- trimethyl pentane) and 30% n-heptane by volume the octane number of the fuel is

Choose an answer

100

70

50

40

Denaturation of protein means the structure of protein is disrupted, indicate which factor foes not denature protein

Choose an answer

Heating protein

pH changes

Oxidising agent

Keeping pH 7.35

1.1 mol of A is mixed with 2.2 mol of B and the mixture is kept in on litre flask till the equilibrium is reached. At equilibrium, 0.2 mol of C is formed. If the equilibrium reaction is A+2B 2C+D, the value of equilibrium constant is

Choose an answer

0.002

0.004

0.001

0.003

Which element has 4 unpaired electrons in 3d-orbital

Choose an answer

Chromium - 24

Manganese - 25

Iron - 26

Cobalt - 27

Which of the following yield both hydrogen and chlorine on electrolysis:

Choose an answer

Electrolysis of acidified water.

Electrolysis of molten NaCl

Electrolysis of aqueous NaCl

Electrolysis of saline water

In an exothermic reaction

Choose an answer

Enthalpy of reactants is lesser than that of products

Enthalpy of reactants is greater than that of products

Heat is transferred form surrounding into the system

Enthalpy of reactants and products same

Which of the following polymers is used for weather resistant paints

Choose an answer

Arcylic resins

Polyvinyl acetate

Polystyrene

PVC

Which of the following will have the highest boiling point

Choose an answer

Methanol

Ethanol

Propanal

2-hexanone

Sulphur dioxide affects

Choose an answer

Cell wall

Plasmodesmata

All membrane systems

Nucleus

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