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 Natural gas is 85% methane, It is used to make the follwing except. Carbon black Ethane Propane Both b and c
2 Pitch is black residue of Coke Coal-tar Coal Coal gas
3 The strone heating of coal in retorts in the absence of air is called. Fractional distillation sublimation Roasting Destructive distillation
4 Main component of natural gas is Methane Propane Butane Propene
5 Coal having 90% carbon contents is called. Peat Lignite anthracite bituminous
6 The ability of carbon atoms to form chains is called. Isomerism Catenation Resonance Condensation
7 Which is used for cleaning agent for domestic and commercial purpose? NaCl Na<sub>2</sub>CO<sub>3</sub> NaHCO<sub>3</sub> Na<sub>2</sub>SiO<sub>3</sub>
8 Which salt is used for the manufacture of detergents, pulp and paper? NaCl Na<sub>2</sub>CO<sub>3</sub> Na<sub>2</sub>SiO<sub>3</sub> NaCl
9 Which salt is used as a table salt? NaCl Na<sub>2</sub>CO<sub>3</sub> Na<sub>2</sub>SiO<sub>3</sub> NaCl
10 Methyl orange produces which colour in basic solution Red Yellow Pink White
11 Phenolphthalein produces red colour in Acid Base Both a and b None of these
12 Indicators are the Inorganic compounds Organic compounds Ionic compounds Covalent compounds
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