Top 550+ Solved General Science MCQ Questions Answer

From 121 to 135 of 532

Q. Which among the following happens in an oxidation reaction ?

a. Electrons are gained

b. Electrons are lost

c. Protons are gained

d. Protons are lost

  • b. Electrons are lost

Q. Identify the thermosetting plastic from the given options:

a. Polythene

b. Bakelite

c. PVC

d. Casseine

  • b. Bakelite

Q. Which among the following is called Laughing Gas popularly?

a. Nitric oxide

b. Nitrous oxide

c. Nitrogen penta oxide

d. Nitrogen

  • b. Nitrous oxide

Q. Identify the non-metallic mineral from the given options:

a. Manganese

b. Magnesium

c. Silica

d. Bauxite

  • c. Silica

Q. Which among the following are constituents of Brass?

a. Zinc and Copper

b. Iron and Zinc

c. Copper and Nickel

d. Iron and Copper

  • a. Zinc and Copper

Q. Which among the following acids is abundant in Grapes, Bananas and Tamarind?

a. Lactic Acid

b. Oxalic Acid

c. Salicylic Acid

d. Tartaric Acid

  • d. Tartaric Acid

Q. Which among the following gas was leaked at Bhopal during the Bhopal gas tragedy at 2-3 December 1984?

a. Methyl isocyanide

b. Methyl isocyanate

c. methyl isochloride

d. methyl isochlorate

  • b. Methyl isocyanate

Q. When a tubelight breaks, a cracking sound is produced because ____?

a. Pressure inside the lamp is less than atmospheric pressure

b. Pressure inside the lamp is more than atmospheric pressure

c. The lamp is filled with reactive gases

d. The lamp is filled with mercury vapour

  • a. Pressure inside the lamp is less than atmospheric pressure

Q. Which among the following is the objective of the Methyl tert-butyl ether (MTBE) mixingwith Petroleum?

a. Raise Octane Number

b. Antioxidant Stabilizer

c. Lead Scavanger

d. Fuel Dye

  • a. Raise Octane Number

Q. The most important contributor of sea salt is ____?

a. Rivers

b. Salty Rocks at bottom of sea

c. Aquatic animals in Sea

d. Atmosphere around sea

  • a. Rivers

Q. Which among the following elements are generally find in free state?

a. Group 11 elements

b. Group 12 elements

c. Group 13 elements

d. Group 14 elements

  • a. Group 11 elements

Q. Which among the following would cause the bright red colur due to bursting of crackers?

a. Strontium

b. Sodium

c. Suphur

d. Magnesium

  • a. Strontium

Q. Who among the following scientists had discovered Radium?

a. Marie Sklodowska-Curie and Pierre Curie

b. André-Louis Debierne

c. Kasimir Fajans

d. Oswald Helmuth Göhring

  • a. Marie Sklodowska-Curie and Pierre Curie
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