everyday science MCQs – Page 20

Practise multiple-choice questions from everyday science for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

everyday science Mcqs

381. Rancidity produced in butter can be decreased by adding quinoline to the butter. This statements shows that _______________?
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A. Quinoline is an activator

B. Nothing is impossible

C. Quinoline is an inhibitor

D. Quinoline is a catalyst

382. The alpha particles are compact clusters of______________?
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A. None

B. Electron and Proton

C. Three protons and three Neutrons

D. Two Protons and two Neutrons

383. Cow milk is a rich source of____________?
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A. vitamin A

B. vitamin C

C. vitamin B

D. vitamin K

384. Which of these is not a Metamorphic rock?
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A. Gneiss

B. Slate

C. Diorite ?

D. Schist

E. Quartzite

385. Nuclear radiation is emitted by those elements whose:
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A. nuclei are stable

B. molecules are stable

C. molecules are unstable

D. nuclei are unstable

386. Bromine is a___________________?
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A. red-brown liquid

B. black solid

C. highly inflammable gas

D. colourless gas

387. The areas around the North and South poles within the Polar circles is called _____________?
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A. The Temperature Zone

B. The Frigid Zone

C. The Torrid Zone

D. The Hardiness Zone

388. Which is correct order of solar system starting from Sun ?
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A. Mercury, Venus, Mars, Earth, Jupiter, Saturn, Neptune, Uranus

B. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Neptune, Uranus

C. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

D. Mercury, Venus, Earth, Jupiter, Mars, Saturn, Uranus, Neptune

389. What is it called when the Earth is closest to the sun _____________?
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A. Aphelion

B. Perihelion

C. Apoapsis

D. Periapsis

390. Which among the following is the correct sequence of the various layers of the Atmosphere from the Earths surface?
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A. Mesosphere, Stratosphere, Ionosphere, Troposphere

B. Troposphere, Ionosphere, Stratosphere, Mesosphere

C. Ionosphere, Mesosphere, Stratosphere, Troposphere

D. . Troposphere, Stratosphere, Mesosphere, Ionosphere

391. How many numbers of chromosomes in Pea plant?
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A. 48

B. 14

C. 46

D. 12

392. During a total solar eclipse the rate of Photosynthesis___________?
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A. Decrease

B. Remain Constant

C. None of them

D. Increase

393. The total energy of revolving electron in an atom_____________
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A. Will always be positive

B. Cannot be negative

C. Can have any value above zero

D. Can never be positive

394. Galvanised Iron sheets have a coating of____________
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A. Chromium

B. Tin

C. Zinc

D. Silver

395. Which is least Conductor of Electricity among the following?
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A. Water

B. Copper

C. Iron

D. Wood

396. What causes the Moons phases?
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A. The Sun lights up only one half of the Moon and as the Sun orbits the Earth we can sometimes see the unlit side of the Moon.

B. The Earths shadow falls on the Moon, blocking the sunlight.

C. The Sun lights up only one half of the Moon and as the Moon orbits the Earth we can sometimes see the unlit side of the Moon.

D. The Moons shadow falls on the Earth, blocking the sunlight.

397. Water is a universal solvent for what reactions?
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A. Biochemical

B. Chemical

C. Nuclear

D. Physical

398. What is the element required for solar energy conversion ______?
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A. Beryllium

B. Ultra pure carbon

C. Silicon

D. Tantalum

399. It is a secondary plant nutrient?
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A. Nitrogen

B. Phosphorus

C. none

D. Sulphur

400. One of the following countries produces maximum energy from atomic reactors?
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A. France

B. none

C. USA

D. UK

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