An egg sinks in soft water but floats in a concentrated solution of salt because...? Mcqs

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An egg sinks in soft water but floats in a concentrated solution of salt because...?

(A) egg absorbs salt from the solution and expands
(B) albumin dissolves in salt solution and egg becomes lighter

(C) the density of salt solution exceeds the density of eggs
(D) water has high surface tension

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Bauxite is an ore of_________...?

(A) copper
(B) zinc

(C) aluminium
(D) iron

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Herbivores that eat only...?

(A) Plants
(B) Animals

(C) Both A and B
(D) None of these

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What is chemical symbol for Tungsten...?

(A) Z
(B) T

(C) Tn
(D) W

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The percentage of plasma in human Blood is _________...?

(A) 50%
(B) 55%

(C) 60%
(D) 80%

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Which mineral is the present in nuts, seeds, dried figs, dried apricots, almond seed, corn, vegetables and fruits etc...?

(A) Magnesium
(B) Copper

(C) Iodine
(D) Sodium

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Which of the following slows down the formation of RBCs (Red Blood Cells)...?

(A) Vitamin B-1
(B) Vitamin C

(C) Vitamin D
(D) Vitamin E

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Which gas does a Photocopier machine produce...?

(A) Ozone
(B) carbon dioxide

(C) Sulfur dioxide
(D) None of these

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The life cycle of the bee is...?

(A) Egg→larva→pupa→bee
(B) Egg→larva→bee→pupa

(C) Egg→pupa→larva→bee
(D) Egg→bee→pupa→larva

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Which type of the following chemical reaction is CaO + CO2 → CaCO2:...?

(A) Combination Reaction
(B) Decomposition Reaction

(C) Neutralization Reaction
(D) None

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