General Science QUESTIONS AND ANSWERS

General Knowledge : General Science QUESTIONS AND ANSWERS :: part22 : 21 to 25

Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2014 examinations :

21.Two solutions are isotonic when they :

are of the same concentration

have the same osmotic pressure

have the same number of isotopes

have the same substance saturating them

22.When an iron nail gets rusted, iron oxide is formed :

without any change in the weight of the nail

with increase in the weight of the nail

with decrase in the weight of the nail

without any change in colour or weight of the nail

23.The suhstance coated on plastic tape-recorder tapes is :

zinc oxide

manganse oxide

iron sulphate

iron oxide

24.Which one of the following is used in welding industry ?

Methane

Ethane

Acetylene

Benzene

25.Tetracycline is used :

for air purification

as a pest killer

as anti-plague drug

as a preservative

More General Science QUESTIONS AND ANSWERS available in next pages

Health is the greatest gift, contentment is the greatest wealth -Buddha

Trust because you are willing to accept the risk, not because itâs safe or certain

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