Home
Current Affairs January 2024

What is the correct answer?

4

The addition of a neutron to the nucleus of an atom

A. increases the atomic mass of the atom

B. decreases the atomic mass of the atom

C. increases the charge on the nucleus

D. decreases the charge on the nucleus

Correct Answer :

A. increases the atomic mass of the atom


Related Questions

What is the correct answer?

4

Alum is used

A. as an analgesic

B. in the purification of water

C. as a fertilizer

D. as a disinfectant

What is the correct answer?

4

Optical instruments are made of

A. pyrex glass

B. flint glass

C. quartz glass

D. Crooke's glass

What is the correct answer?

4

The process that takes place in the atom bomb is

A. nuclear' fusion

B. radioactive disintegration

C. nuclear fission

D. chemical decomposition

What is the correct answer?

4

Tincture iodine is

A. a disinfectant

B. an analgesic

C. a hypnotic

D. a dye

What is the correct answer?

4

An acid which is used as a preservative for pickles is

A. hydrochloric acid

B. citric acid

C. tartaric acid

D. acetic acid

What is the correct answer?

4

The Long Form of the Periodic Table is based on

A. atomic number

B. valency

C. atomic mass

D. atomic radius

What is the correct answer?

4

Which one of the following elements is alloyed with iron to produce steel which can resist high temperatures and also have high hardness and abrasion resistance?

A. Aluminium

B. Chromium

C. Nickel

D. Tungsten

What is the correct answer?

4

The Carbon dioxide is absorbed by

A. Palladium

B. NaCI

C. KOH

D. Dilute H2SO4

What is the correct answer?

4

The most abundant noble gas present in air is

A. neon

B. argon

C. helium

D. krypton

What is the correct answer?

4

The artificial silk produced from cellulose is

A. Polyethylene

B. Nylon

C. Terylene

D. Rayon

What is the correct answer?

4

One of the ingredients of the paste on the side of a match box is

A. phosphorus pentaoxide

B. phosphorus trichloride

C. phosphorus trisulphide

D. phosphorus trioxide

What is the correct answer?

4

Artificial diamonds were produced by

A. Moissan

B. Davy

C. Faraday

D. Marie Curie

What is the correct answer?

4

A burning substance which continues to burn in a jar of carbon dioxide is

A. zinc

B. red phosphorus

C. magnesium

D. sulphur

What is the correct answer?

4

The principle involved in dialysis, a treatment administered to patients with affected kidneys is

A. Cataphoresis

B. Osmosis

C. Dehydration

D. Diffusion

What is the correct answer?

4

Which of the following is a regenerated fibre?

A. Terylene

B. Rayon

C. Nylon

D. Silk

What is the correct answer?

4

An example of thermo setting plastics is

A. bakelite

B. polythene

C. PVC

D. Teflon

What is the correct answer?

4

An antipyretic is a drug used

A. in the treatment of malaria

B. to relieve sleepiness

C. to induce sleep

D. to lower body temperature

What is the correct answer?

4

The presence of dust particles in air serves

A. as a nucleus to condense water vapour resulting in rain

B. to maintain the average density of air

C. to minimise the inflammatory nature of oxygen

D. to protect the inhabitants of the earth from the effects of ultra violet rays.

What is the correct answer?

4

Concrete is a mixture of

A. cement an limestone

B. cement and sand

C. cement and gravel

D. cement, sand and gravel

What is the correct answer?

4

Which of the following is not a chemical change?

A. Burning of magnesium ribbon in air

B. Distillation of water

C. Heating of cane sugar

D. Setting of cement

What is the correct answer?

4

A form of carbon which is a good lubricant is

A. diamond

B. coke

C. graphite

D. charcoal

What is the correct answer?

4

Which or the following electrolysis?

A. Aluminium

B. Copper

C. Zinc

D. Iron

What is the correct answer?

4

Vinegar is an aqueous solution of

A. oxalic acid

B. citric acid

C. acetic acid

D. hydrochloric acid

What is the correct answer?

4

When ants bite, they inject

A. glacial acetic acid

B. methanol

C. formic acid

D. stearic acid

What is the correct answer?

4

In photography, the compound or nitrogen used is

A. Potassium nitrate

B. Silver nitrate

C. Ammonium carbonate

D. Ammonium bicarbonate

What is the correct answer?

4

Solid carbon dioxide (Dry ice) is also known as

A. Thiokol

B. Drikold

C. Perhydrol

D. Mannitol

What is the correct answer?

4

Invert sugar is

A. sucrose

B. glucose

C. fructose

D. a mixture of glucose and fructose

What is the correct answer?

4

Penicillin was discovered by

A. Alexander Fleming

B. Sir JJ Thomson

C. Dr Nessler

D. Sir John Russel

What is the correct answer?

4

Which of the following is used as an illuminant?

A. Gasoline

B. Benzoline

C. Kerosene

D. Petroleum ether

What is the correct answer?

4

Radium was isolated from

A. galena

B. dolomite

C. sylvine

D. pitchblende