General Knowledge MCQ - English
The gas usually filled in the electric bulb is
nitrogen
hydrogen
carbon dioxide
oxygen
Answer : A
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1) Which of the following is not an isotope of hydrogen?
2) Water is a good solvent of ionic salts because
it has a high specific heat
it has no colour
it has a high dipole moment
it has a high boiling point
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3) Bell metal is an alloy of
4) The gases used in different types of welding would include
oxygen and hydrogen
oxygen, hydrogen, acetylene and nitrogen
oxygen, acetylene and argon
oxygen and acetylene
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5) The main constituents of pearls are
calcium oxide and ammonium chloride
calcium carbonate and magnesium carbonate
aragonite and conchiolin
ammonium sulphate and sodium carbonate
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