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General Science - Questions and Answers

Practice questions on General Science.

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1226. Two solutions are isotonic when they :
A. are of the same concentration
B. have the same osmotic pressure
C. have the same number of isotopes
D. have the same substance saturating them
Explanation:
1227. When an iron nail gets rusted, iron oxide is formed :
A. without any change in the weight of the nail
B. with increase in the weight of the nail
C. with decrase in the weight of the nail
D. without any change in colour or weight of the nail
Explanation:
1228. The suhstance coated on plastic tape-recorder tapes is :
A. zinc oxide
B. manganse oxide
C. iron sulphate
D. iron oxide
Explanation:
1229. Which one of the following is used in welding industry ?
A. Methane
B. Ethane
C. Acetylene
D. Benzene
Explanation:
1230. Tetracycline is used :
A. for air purification
B. as a pest killer
C. as anti-plague drug
D. as a preservative
Explanation: