Can the difference between cotton and woolly fibers be found?
(A) touching
(B) Torches
(C) reacting with NaOH
(D) Taking action with H.S.O.
Why are white dresses worn in summer?
(A) Bad absorbers of heat are
(B) are cheap
(C) are attractive
(D) None of these
Which vitamin is high in orange?
(A) D
(B) A
(C) C
(D) B
Rust on iron?
(A) ferric oxide
(B) Hydrated ferrous and ferric oxide
(C) Alkali ferrous and ferric carbonate
(D) Because of all of the above
Vegetable oils are converted into ghee?
(A) Heat treatment
(B) hydrogenation
(C) oxygen
(D) by enzymes
Which of the following is not a fuel gas?
(A) Water gas
(B) Producer gas
(C) Laughing gas
(D) Marsh gas
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