The unit of Kc for reaction N2 + O2 ⇌ 2NO...? Mcqs

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The unit of Kc for reaction N2 + O2 ⇌ 2NO...?

(A) mol dm^-3
(B) mol^-2 dm^6

(C) mol^-1dm3
(D) No unit

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Which of the following is the hardest substance...?

(A) Copper
(B) Diamond

(C) Iron
(D) Silicon

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The half life of a radioactive element is 8-days. How long it take to reduce it from 10 mg to 5 mg...?

(A) 4 days
(B) 12 days

(C) 16 days
(D) 8 days

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The springs in brakes and clutches are used ______...?

(A) To restore original position
(B) To measure forces

(C) To absorb shocks
(D) To absorb strain energy

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Upon completion in 2029, which of the following will become the most powerful telescope in the world...?

(A) James webb 5.0 telescope
(B) Giant Magellan space telescope

(C) The Vainu Bappu Telescope
(D) Hubble space telescope 2.0

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What inspired reflecting road lights to be invented...?

(A) Car door reflecting mirrors
(B) The light a cat’s eyes gave off on a fence

(C) Sun light on steel posts on road sides
(D) The sun light on the windshield

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CH3-CH2- is _____ radical....?

(A) Methyl
(B) Ethyl

(C) n-propyl
(D) Isopropyl

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Select the arrangement of electromagnetic radiation which starts with the lowest energy and increases to greatest energy...?

(A) radio, visible, infrared, ultraviolet, x-ray, gamma ray
(B) radio, infrared, visible, x-ray, gamma ray, ultraviolet

(C) visible, radio, infrared, ultraviolet, x-ray, gamma ray
(D) radio, infrared, visible, ultraviolet, x-ray, gamma ray

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The soil maturity color of northeastern areas is ______...?

(A) Grey
(B) Reddish

(C) Dark Brown
(D) None of these

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On the bases of food type, animals can be classified into how many kinds...?

(A) 1
(B) 2

(C) 3
(D) 4

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