How many rows in the modern Periodic Table...? Mcqs

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How many rows in the modern Periodic Table...?

(A) 5
(B) 6

(C) 7
(D) None of these.

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When a liquid is placed in a container, the pressure applied to the fluid by the container is equal throughout the container is the statement of _____...?

(A) Archimedes' Principle
(B) Bernoulli's Principle

(C) Boyle's Law
(D) Pascal's Law

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The source of the Sun’s energy is the process of ____________...?

(A) Photoelectric emission
(B) Nuclear fission

(C) Nuclear fusion
(D) Thermionic emission

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The blurred image is formed in front of eyes due to ______...?

(A) Light focused in front of the retina
(B) Light focused behind the retina

(C) Light focused at a point on retina
(D) Light focused at a point beyond retina

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Smoke is an solution of _________...?

(A) Solid in solid
(B) Solid in liquid

(C) Solid in gas
(D) Gas in gas

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Consider isotope 92U^237 of uranium. The number of neutrons in it is...?

(A) 237
(B) 329

(C) 92
(D) 145

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Hailey’s comet is visible after every_________...?

(A) 84 years
(B) 76 years

(C) 1000 years
(D) 365 years

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The toxicity of which of the following heavy metals leads to Liver cirrhosis...?

(A) Copper
(B) Lead

(C) Mercury
(D) Zinc

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Which is a tertiary consumer that eats the mouse, the primary consumer, and the cat the secondary consumer...?

(A) Mouse
(B) Wolf

(C) Hawk
(D) Cat

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The correct age of solar system is approximately __________...?

(A) 4.3 Billion years
(B) 4.4 Billion years

(C) 4.5 Billion years
(D) None of these

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