When an acid reacts with a metal, which one of the following gas is usually liberated...? Mcqs

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When an acid reacts with a metal, which one of the following gas is usually liberated...?

(A) Ammonia Gas
(B) Chlorine

(C) Oxygen
(D) Hydrogen gas

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Which one of the following is correct statement...?

(A) Oxidation occurs at cathode
(B) Reduction occurs at anode

(C) Reduction occurs at cathode
(D) Ions lose electrons at cathode

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What is the respiration equation in plants...?

(A) C6H12O6 + 6O2 → 6CO2 + 6H2O
(B) 6CO2 + 6H2O → C6H12O6 + 6O2

(C) 6CO2 + 6O2 → C6H12O6 + 6H2O
(D) 6H2O + 6O2 → C6H12O6 + 6CO2

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Other name of platelets _______...?

(A) Erythrocytes
(B) Leukocytes

(C) thrombocytes
(D) None of these

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What is the particle size in suspension...?

(A) 10 nm^3
(B) 10 nm^2

(C) Less than 10 nm^3
(D) Greater than 10 nm^3

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Larynx is located on _____...?

(A) Lungs
(B) Trachea

(C) Bronchus
(D) Bronchiole

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What measurement scale is used to determine wind speed...?

(A) Richter Scale
(B) Beaufort Scale

(C) Meter-second scale
(D) None of these

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Chronometer is invented by________...?

(A) Robert Fulton
(B) Nikola Tesla

(C) Martin Cooper
(D) John Harrison

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Which blood cells are called ‘Soldiers’ of the body...?

(A) White Blood Cells
(B) Platelets

(C) Red Blood Cells
(D) None of the above

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The brightest colour emitted by the sun is:...?

(A) Violet
(B) Yellow-Green

(C) Green- Blue
(D) Red

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