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

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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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‘Bar’ is the unit of___________...?

(A) Temperature
(B) Heat

(C) Atmospheric pressure
(D) Current

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Stability of a racing car is increased by _______...?

(A) Increasing its height
(B) Raising its centre of gravity

(C) Decreasing its width
(D) Lowering its centre of gravity

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Carrot is good source of Vitamin _______...?

(A) Vitamin A
(B) Vitamin B

(C) Vitamin C
(D) Vitamin D

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Gales occur when the wind moves at the speed of _____ ...?

(A) 35 km/h
(B) 55 km/h

(C) 75 km/h
(D) 100 km/h

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What is the percentage of salt water on earth surface...?

(A) 93%
(B) 95%

(C) 97%
(D) 76%

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The two elements that are frequently used for making transistors are :...?

(A) Boron and aluminium
(B) Silicon and Germanium

(C) Iridium and Tungston
(D) None of these

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Colourless, irregular in shape, nucleated and larger sized cell than R.B.Cs called...?

(A) Erythrocytes
(B) Platelets

(C) Leucocytes
(D) Lymphocytes

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In which stage of mitosis chromosomes get attached to spindle fibers formed by two the centrioles...?

(A) Metaphase
(B) Anaphase

(C) Telophase
(D) Prophase

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Which animal can create the loudest sound among any living creature...?

(A) Donkey
(B) Monkey

(C) Humpback whales
(D) None of these

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