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Current Affairs January 2024

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The neutron was discovered by

A. Chadwick

B. Madam Curie

C. Becquerel

D. Aston

Correct Answer :

A. Chadwick


Related Questions

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Reduction involves

A. loss of electrons

B. gain of electrons

C. gain of oxygen

D. removal of hydrogen

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Ascorbic acid is the chemical name for

A. Vitamin B6

B. Vitamin C

C. Vitamin K

D. Vitamin D

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Grape sugar is another name for

A. glucose

B. fructose

C. sucrose

D. maltose

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Calamine is a ore of

A. tine

B. magnesium

C. zinc

D. copper

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The sugar which is used in silvering mirrors is

A. sucrose

B. maltose

C. glucose

D. fructose

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Iron is coated with zinc to prevent rusting. The process is called

A. annealing

B. tempering

C. calcining

D. galvanising

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Which of the following is a mixture?

A. Baking soda

B. Milk

C. Chloroform

D. Copper wire

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Which of the following is called 'the King of Chemicals?

A. Nitric acid

B. Hydrochloric acid

C. Silver nitrate

D. Sulphuric acid

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Ozone is an allotrope of Oxygen, containing ______ atom/s of oxygen per molecule instead of two.

A. three

B. four

C. one

D. five

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A metal which is extracted by thermal reduction is

A. nickel

B. aluminium

C. mercury

D. calcium

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Which of the following cannot be used as fuel?

A. Gasoline

B. Kerosene

C. Sulphuric acid

D. Alcohol

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The Combined Gas Law equation is

A. P1V1T1 = P2 V2 T2

B. P1V1T2 = P2V2T1

C. P = P1 + P2 + P3

D. C =

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The hormone which absorption is increases glucose oxidation and glucose

A. adrenalin

B. thyroxin

C. insulin

D. epinephrine

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Two or more entirely different compounds having the same molecular formula are known as

A. isobars

B. isotopes

C. isomorphs

D. isomers

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Iodine in alcohol is known as

A. quick lime

B. tincture iodine

C. rectified spirit

D. None of these

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Which of the following is not an antibiotic?

A. streptomycin

B. terramycin

C. aureomycin

D. codein

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The freezing point of water at 760 mm pressure is

A. 273 K

B. 0 K

C. 273°C

D. -273°C

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Solid carbon dioxide is used

A. as a drying agent

B. as a refrigerant

C. as an antiseptic

D. as a bleaching agent

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Invar, used for making pendulums is an alloy of steel with

A. tungsten

B. nickel

C. manganese

D. chromium

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BHC is a

A. Rodenticide

B. Herbicide

C. Pesticide

D. Fungicide

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Solid carbon dioxide (Dry ice) is also known as

A. Thiokol

B. Drikold

C. Perhydrol

D. Mannitol

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A light alloy having high tensile strength is

A. German silver

B. solder

C. magnalium

D. bell metal

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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

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Which of the following is a regenerated fibre?

A. Terylene

B. Rayon

C. Nylon

D. Silk

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The malarial parasite was discovered by

A. Sir Ronald Ross

B. Sir Francis Haig

C. Dr Jagadish Chandra Bose

D. Sir CV Raman

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Concrete is a mixture of

A. cement an limestone

B. cement and sand

C. cement and gravel

D. cement, sand and gravel

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The compounds produced by plants in the process of photosynthesis are

A. carbohydrates

B. proteins

C. salts

D. fats

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Flint glass contains

A. potassium and lead silicates

B. zinc and barium borosilicates

C. potassium and calcium silicates

D. sodium and calcium silicates

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The process of heating steel to bright red heat and cooling suddenly by plunging it into water is known as

A. annealing

B. hardening

C. quenching

D. tempering

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The alloy added in the preparation of steel contains

A. Fe and C

B. Mn and C

C. Fe and Mn

D. Fe, Mn and C