Chemical formula for Water is _______ ...? Mcqs

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Chemical formula for Water is _______ ...?

(A) NaAlO2
(B) H2O

(C) Al2O3
(D) CaSiO3

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Very small time intervals are accurately measured by the___________...?

(A) Pabsars
(B) White dwarfs

(C) Atomic Clocks
(D) None of these

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___________are negatively (-) charged particles of an atom...?

(A) Protons
(B) Neutrons

(C) Electrons
(D) None of These

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The lenses are used for the correction of:____________...?

(A) Long-sightedness
(B) short sightedness

(C) Both A & B
(D) None of those

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The protein content in wheat is approximately...?

(A) 8%
(B) 6%

(C) 13%
(D) 17%

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Which of the followong spacecrsft enabled man to step on the moon first...?

(A) Spuntnik I
(B) Luna II

(C) Vostok I
(D) Apollo XI

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The permanent hardness of water is due to presence ______...?

(A) MgSO4
(B) Mg(HCO3)₂

(C) CA(HCO3)2
(D) All of these

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A _____ is used in submarines to monitor the surface of water....?

(A) Periscope
(B) Telescope

(C) Kaleidoscope
(D) Binoculars

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Which of the following vitamins is involved in collagen production...?

(A) Vitamin A
(B) Vitamin B12

(C) Vitamin C
(D) None of these

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How Many Brains Does an Octopus Have...?

(A) 7
(B) 8

(C) 9
(D) 6

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