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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Plant utilizes simple inorganic molecules (CO2 and H2O) to prepare _____...?

(A) Glucose and water
(B) Glucose and oxygen

(C) Oxygen and water
(D) Oxygen and Glucose

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How many elements are in modern periodic table...?

(A) 118
(B) 181

(C) 108
(D) 188

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A _______ with a rod, called an axle, through its center lifts or moves loads....?

(A) Wheel
(B) Pulley

(C) Lever
(D) Inclined Plane

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Which of the following disorder is associated with degeneration of alveoli...?

(A) Bronchitis
(B) Lung cancer

(C) Asthma
(D) Emphysema

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A body is in unstable equilibrium after slight tilt if its center of gravity ______...?

(A) Remains on one side of the point of contact
(B) Remains above the point of contact

(C) Passes over the point of contact
(D) Is positioned at its bottom

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Electronic configuration is distribution of _______...?

(A) Proton
(B) Neutron

(C) Electron
(D) Positron

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Which of the following vitamin is known as Pantothenic acid...?

(A) vitamin B-1
(B) vitamin B-2

(C) vitamin B-3
(D) vitamin B-5

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Why the needle of iron swims on water surface when it is kept gently ...?

(A) It will remain under the water, when it will displace more water than its weight
(B) the density of needle is less than that of water

(C) due to surface tension
(D) due to its shape

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A mass of 4 kg is equal to _____...?

(A) 400 g
(B) 4000g

(C) 40 g
(D) 40000 g

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