⚡️ General science multiple choice questions PDF Test No -9

413. Which is the source of cork ?
(a) Corica papaya
(b) Silver oak
(c) Quercus suber
(d) Cyprus plant

Ans-C ✔

414. X-rays are
(a) Flows of electrons
(b) Electromagnetic radiations
(c) Streams of charged atoms
(d) Streams of electrons and protons

Ans-B ✔

415. Nagarjuna whose works were found in China and Tibet was
(a) A chemist
(b) A mathematician
(c) A physicist
(d) A physician

Ans-A ✔

416. Which of the following helps in the clotting of blood ?
(a) Vitamin A
(b) Vitamin B
(c) Vitamin K
(d) Vitamin D

Ans-C ✔

417. The disease which is believed to be hereditary is
(a) Nephritis
(b) Diabetes
(c) Night blindness
(d) Anaemia

Ans-B ✔

418. Cinnabar is an ore of
(a) Aluminium
(b) Copper
(c) Mercury
(d) Zinc

Ans-C ✔

419. The coil of an electric heater is made of
(a) Zinc
(b) Nichrome
(c) Brass
(d) Copper

Ans-B ✔

420. The level of glucose in the blood of a human being is kept constant by
(a) The action of insulin
(b) The action of liver
(c) The action of glucose
(d) The joint action of insulin and glucose

Ans-A ✔

421.Nitric acid does not react with
(a) Zinc
(b) Gold
(c) Silver
(d) Copper

Ans-B ✔

422.Rusting of iron in the moist air involves
(a) The hydration of iron
(b) The loss of electrons by iron
(c) Neither the loss nor the gain of electrons by iron
(d)The gain of electrons by iron

Ans-B ✔


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