Chemistry 10th Class English Medium Online Test With Answers

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Chemistry 10th Class English Medium Online Test

Sr. # Questions Answers Choice
1 Hydrogenation of vegetable oil to convert it into banaspatic ghee is carried out in the presence of catalyst: Ni-metal Zn-metal Na - Metal Fe2O3
2 Ethen is prepared by heating a mixture of ethanol and excess of concentrated sulphuric acid at: 150°C 180°C 250°C - 300°C 400°C - 450°C
3 Olefins is a Latin word meaning: inert less reactive oil forming most reactive
4 Which one of these is used as anaesthesia? carbon black Mehtane Ethane Chloroform
5 Hydrogenation of alkenes and alkynes may be carried out at room temperature in the presence of catalyst: Pt or Pd Ni Zn Fe2O3
6 Marsh gas is mostly : ethane methane butane propane
7 Volatility of hydrocarbons deceases with: decrease of molecular mass increase of molecular mass increase of double or triple bonds decrease of triple bonds
8 Which one of the following is gas at room temperature: C2H6 C6H14 C6H6 C8H18
9 Which one of the following is a synthetic fiber: cotton wool nylon silk
10 Petroleum is refined by: destructive distillation fractional distillation simple distillation dry distillation
11 Alkanes are also called: olefins Paraffins aliphatic compound cyclic compounds
12 The black residue of the coal tar is called: peat lignite pitch matte
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