Which of the following are made up of two or more substances that are not chemically combined...? Mcqs

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Which of the following are made up of two or more substances that are not chemically combined...?

(A) Compounds
(B) Elements

(C) Solutions
(D) Mixtures

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Atmosphere is held in place by...?

(A) Pressure of the planetary body
(B) Gravity of the planetary body

(C) Charge of the planetary body
(D) Heat of the planetary body

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For which system does the equilibrium constant, Kc has units of concentration....?

(A) N2(g) + 3H2(g) ⇌ 2NH3(g)
(B) N2(g) + 02(g) ⇌ 2NO

(C) H2(g) +12(g) ⇌ 2HI(g)
(D) CO2(g) + H3(g) ⇌ CO + H2O(l)

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The two chromatids are attached to each other at ______...?

(A) Telomere
(B) Histone

(C) Chromonema
(D) Centromere

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Which process is used to get back the solid substances from a solution...?

(A) Crystallization
(B) Distillation

(C) Filtration
(D) Sublimation

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Atmospheric pressure decrease rapidly with altitude because the air becomes_______ ...?

(A) Colder
(B) Less denser

(C) Rich in Ozone
(D) Warmer

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Which of the following is not a magnetic material...?

(A) Steel
(B) Aluminum

(C) Cobalt
(D) None

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who invented bulb...?

(A) Philips
(B) Robert

(C) Edison
(D) Willium

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The valency of carbon Atom is __________ ...?

(A) 1
(B) 2

(C) 3
(D) 4

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The function of hemoglobin is____________...?

(A) Transportation of oxygen
(B) Destruction of bacteria

(C) Prevention of anemia
(D) Utilization of energy

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