Oxygen belongs to group VIA so number of electrons in its valence shell are _____...? Mcqs

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Oxygen belongs to group VIA so number of electrons in its valence shell are _____...?

(A) 3
(B) 4

(C) 5
(D) 6

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Which mineral is the present in meats, eggs, table salt, fruits and vegetables...?

(A) Sodium
(B) Iodine

(C) Calcium
(D) Magnesium

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Near Earth's surface g = ______...?

(A) 10 ms^-2
(B) 1.6 ms^-1

(C) Both (a) and (b)
(D) None of these

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Which is the purest form of water...?

(A) Rain water
(B) Heavy water

(C) Tap water
(D) None of these

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The heaviest naturally-occurring element is_________...?

(A) Radium
(B) Platinum

(C) Uranium
(D) Cadmium

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The gas, commonly known as “laughing gas”, is...?

(A) Carbon Dioxide
(B) Sulfur Dioxide

(C) Nitrous Oxide
(D) Sodium Oxide

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When an object is placed far away from the concave mirror its image will be...?

(A) Real
(B) Inverted

(C) Smaller in size than the object
(D) All of these

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Which satellites are used to locate position of ships, cars, aeroplanes, aircrafts and even automobiles...?

(A) Navigation
(B) Weather

(C) Communication
(D) Earth Observation

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Which among the following is the correct sequence of the various layers of the Atmosphere from the Earth’s surface...?

(A) Ionosphere, Mesosphere, Stratosphere, Troposphere
(B) Mesosphere, Stratosphere, Ionosphere, Troposphere

(C) Troposphere, Stratosphere, Mesosphere, Ionosphere
(D) Troposphere, Ionosphere, Stratosphere, Mesosphere

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The flash of light from lightening travels at about ____...?

(A) 2 x 10^5 m/s
(B) 1 x 10^4 m/s

(C) 5 x 10^6 m/s
(D) 3 x 108 m/s

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