Exoskeleton of a marine snail is composed of...? Mcqs

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Exoskeleton of a marine snail is composed of...?

(A) Calcium Sulphate
(B) Calcium Carbonate

(C) Sulphur Dioxide
(D) None of these

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Latest MCQs

CU is the symbol of which element of the periodic table:...?

(A) Chromium
(B) Copper

(C) Carbon
(D) None of these

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Latest MCQs

Which is the hardest among following...?

(A) Radium
(B) Diamond

(C) Graphite
(D) Gold

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Which is used as an electrode in the dry cell:...?

(A) Lead
(B) Graphite

(C) Molybdenum
(D) None of these

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What type of acid is used in car batteries...?

(A) Hydrochloric acid
(B) Hydrofluoric acid

(C) Nitric acid
(D) Sulphuric acid

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Biogas produced as a result of anaerobic decay of organic matter consist primarily of_____ gases ...?

(A) N2 & SO2
(B) O2 & N2

(C) NH3 & CO2
(D) None of these

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Which Muslim scientist is considered to be the founder of chemistry___...?

(A) Jabir bin Hayan
(B) Al Beroni

(C) Yaqoob Alkandi
(D) None

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Bio gas is the common name of...?

(A) Methane (CH₄)
(B) Hydrogen gas

(C) Nitrogen gas
(D) Oxygen gas

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Which one of the following is a metal...?

(A) Gypsum
(B) Mercury

(C) Limestone
(D) Granite

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A chemical solution has 8% acid the acid is 15 ml the total volume of solution is...?

(A) 179.5 ml
(B) 180.5 ml

(C) 187.5 ml
(D) None of these

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