Which one of the following is the softest...? Mcqs

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Which one of the following is the softest...?

(A) sodium
(B) iron

(C) aluminium
(D) lithium

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Latest MCQs

What happens when you put sand, salt and sawdust in glass of water...?

(A) Salt has dissolved in water
(B) Sand sank to the bottom

(C) Sawdust floated on the top
(D) All of these

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The most distant human-made object sent into the space is...?

(A) Voyager 1
(B) Pioneer 10

(C) Eris
(D) New Horizon

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The Velocity of light in a diamond is (whereas the refractive index of a diamond with respect to vacuum is 2.5)...?

(A) 5x10^8m/s
(B) 2.5x10^8m/s

(C) 1.2x10^10m/s
(D) 1.2x10^8m/s

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Vertical columns in the periodic table of elements are called as__________...?

(A) Periods
(B) Groups

(C) Rows
(D) Lanthanoids series

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A Rhinoscope (or Nasoscope) is a thin, tube-like instrument used to examine the inside of the_____...?

(A) Eyes
(B) Nose

(C) Ears
(D) Brains

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_______________ causes biomagnification problem in the Ecosystem....?

(A) Lead
(B) Mercury

(C) Chromium
(D) Copper

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Loss of internal water of plant in the form of vapours from aerial parts of plants is called...?

(A) Evaporation
(B) Respiration

(C) Transpiration
(D) Photosynthesis

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The only source of energy on earth is ____...?

(A) Moon
(B) Star

(C) Water
(D) Sun

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In the periodic table, columns is considered to be a ____...?

(A) Periods
(B) Groups

(C) Zigzag
(D) Diagonal

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