Railway Exams (RRB) - General Science

Matter, Chemical Reactions & Periodic Classification question bank (Chemistry (Class 10 CBSE Standard))

Practice 64 free Railway Exams (RRB) - General Science Chemistry (Class 10 CBSE Standard) - Matter, Chemical Reactions & Periodic Classification questions with answers and step-by-step solutions.

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Q1.

Physics (Class 10 CBSE): What is the SI unit of electric resistance measured in locomotive circuits in 'Matter: Solid, Liquid, Gas, Plasma and Bose-Einstein Condensate'?

(A)

Ohm ($\Omega$) (Matter: Solid, Liquid, Gas, Plasma and Bose-Einstein Condensate)

(B)

Volt

(C)

Ampere

(D)

Watt

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Q2.

Chemistry: What is the common chemical name and formula for Bleaching Powder used in railway station sanitation in 'Matter: Solid, Liquid, Gas, Plasma and Bose-Einstein Condensate'?

(A)

Calcium hypochlorite / Calcium oxychloride ($CaOCl_2$) (Matter: Solid, Liquid, Gas, Plasma and Bose-Einstein Condensate)

(B)

Sodium bicarbonate ($NaHCO_3$)

(C)

Calcium sulfate hemihydrate ($CaSO_4 \cdot \frac{{1}}{{2}}H_2O$)

(D)

Sodium hydroxide ($NaOH$)

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