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 Carbonization process is the conversion of Coal into coal gas Coal into wood Wood into coal Wood into coal tar
2 In which of the following groups, oxygen is attached on both sides with carbon atoms? Ketone Ether Aldehyde Ester
3 Which of the following is the hardest coal? Pear Lignite Bituminous Anthracite
4 The functional group- COOH is found in Carboxylic acid aldehydes alcohals easter
5 Which of the following statement s is not true about fossil fuels? they all contain carbon They are renewable they produce pollutants when burnt they cause acid rain
6 Identify which one of the following compounds is a ketron? (CH<sub>3</sub>)<sub>2</sub> CHOH (CH<sub>3</sub>)<sub>2</sub>CHCl (CH<sub>3</sub>)<sub>2</sub>CO (CH<sub>3</sub>)<sub>2</sub>CHCl
7 General formula of alkyl radical is C<sub>n</sub>H<sub>2n+2</sub> C<sub>n</sub>H<sub>2n-</sub><span style="vertical-align: sub;">2</span> C<sub>n</sub>H<sub>2n+1</sub> C<sub>n</sub>H<sub>2n</sub>
8 The strong heating of coal in retoris in the absence of air is called. Fractional distillation Sublimation Roasting Destructive distillation
9 Main component of natural gas is Methane propane Butane Propene
10 In laboratory urea was prepared by Wohler Rutherford Berzelius Dalton
11 Petroleum is refined by Destructive distillation Fractional distillation Simple distillations Dry distillation
12 Which one of the following does not contain starch Sugar cane Maize Barley Potatoes
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