Chemistry Mcqs

Process used to separate insoluble particles from liquids is ___________ ?

(A) Drying
(B) Filtration
(C) Sieving
(D) Extraction

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Column of manometer which faces liquid is __________ ?

(A) Raised
(B) Depressed
(C) Compressed
(D) Remains same

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Quantum numbers are __________ ?

(A) Arithmetical values
(B) Numerical values
(C) Leometric values
(D) Logical values

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Distance at which attractive forces of hydrogen overcome repulsive forces is __________ ?

(A) 75.2pm
(B) 75.3pm
(C) 75.5pm
(D) 75.4pm

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In a group, atomic radii increase due to successive increase of _________ ?

(A) Electronic shells
(B) Proton shells
(C) Neutron shells
(D) Nucleus

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Chromatography is used to separate _________ ?

(A) Solution
(B) Mixtures
(C) Molecules
(D) Atoms

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In SI base units, 1 Bq is equal to __________ ?

(A) 10 disintegration per second
(B) 1.5 disintegration per second
(C) 0.01 disintegration per second
(D) 1 disintegration per second

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A helium nucleus comprising of two protons and two neutrons with a charge of 2e is _________ ?

(A) Beta particle
(B) Gamma particle
(C) Alpha particle
(D) Negative particle

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Elements which emit natural radioactivity are known as __________ ?

(A) Radio elements
(B) Active elements
(C) Radioactive elements
(D) Nuclear elements

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When Ammonia is used as a refrigerant in vapour compression cycle?

(A) Cu Tubing used
(B) Steel tubes used
(C) Both a & b
(D) Material does not effect by refrigerant

Submitted By :Ali Uppal