Question # 1

Total number of possible chain and positional isomers of butyl alcohol among alcohols are

Choose an answer

Four

Five

Two

Six

Augus smith discovered in the mid of seventeenth century:

Choose an answer

acid

Base

Acid rain

Fertilizer

Ethanoic acid reacts with all of these to produce water except

Choose an answer

Ethanol

Sodium

Caustic soda

Sodium hydrogen carbonate

The oxidation state of transition elements is usually

Choose an answer

Variable

Single

Constant

Infinite

The chemical reactivity of glass is reduced by the use of

Choose an answer

fluxes

formers

stabilizers

none of the above

Example of non-protein amino acid

Choose an answer

Alanine

Citrulline

Phenylalanine

Leucine

When light is exposed to transtion element, then electrons jump from lower orbitals to higher orbitals in

Choose an answer

Orbitals of s-subshell

Orbitals of d-subshell

Orbitals of p-subshell

between different shells

The temperature in the incineration process has a range:

Choose an answer

900 to 1000°C

650 to 1100°C

950 to 1300°C

500 to 900°C

When the temperature is raised, the viscosity of the liquid decreases.This is because of

Choose an answer

Decreased volume of the solution

Increase in temperature increases the average kinetic energy of molecules which overcome the attractive force between them

Decreased covalent and hydrogen bond forces

Increased attraction between the moelcules

An ideal gas expands according to PV=constant. On expansion, the temperature of gas

Choose an answer

will rise

will drop

cannot be determined because the exteral pressure is not known

will remain same

Which one of the pollutants of automobile exhausts affects the nervous system or produces mental diseases?

Choose an answer

NO₂

SO₂

Hg

Pb

Which property is not present in Al?

Choose an answer

Reacts with acid

Reacts with bases

Changes litmus paper

Changes methyle orange colour

A system undergoes a change to attain the state of

Choose an answer

High energy

Low energy

Moderate energy

None of these

Sulphuric acid has great affinity for water because

Choose an answer

It hydrolyses the acid

It decomposes the acid

Acid forms hydrates with water

Acid decomposes water

Choose an answer

Adding H₂O and H⁺ions

Adding OH^-ions

Adding O²molecules

Adding O atoms

Which of these polymers is a synthetic polymer

Choose an answer

Animal fat

Starch

Cellulose

Polyester

Hydrochloric acid available in the laboratory is 36% w/w. The density of HCl solution is 1.19 g cm^-3. The molarity of HCl solution is

Choose an answer

10.23 moles dm^-3

11.55 moles dm^-3

11.73 moles dm^-3

12.67 moles dm^-3

Which of the following enzymes brings about the hydrolysis of fats?

Choose an answer

Urease

Maltase

Zymase

Lypase

Which of the following has highest first ionization potential?

Choose an answer

Carbon

Oxygen

Nitrogen

Boron

Which of the following represents elements in order of increasing atomic size?

Choose an answer

I, Br, Cl

Na, Mg, C

C, N, O

Li, Na, K

A state function of the system which describes together the internal energy and the work done is called

Choose an answer

Enthaply

Internal energy

Work

Free energy

The sun of all the energies of atoms, molecule, ion, within system is called

Choose an answer

Enthalpy

K.E. of the system

Internal energy

None

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