Which of the following gases is obtained by the reaction of copper with dilute nitric acid is 1 NO2 2 N2O5 3 O2 4 NO

1 Answers  

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What is the Ecology ?

1 Answers  

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Which of the following reactions is used for increasing the number of carbon atoms in a chain? 1 Substitution reaction 2 Wurtz reaction 3 Friedel – Crafts reaction 4 Cannizzaro’s reaction

2 Answers  

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Liquefied Petroleum Gas consists of mainly 1 Methane, ethane and hexane 2 Ethane, hexane and noname 3 Methane, butane and propane 4 Methane, hexane and nonane

2 Answers  

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Which gas is used in cold store ?

4 Answers   Tumkur University,

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Marsh gas is 1 Hydrogen 2 Nitrogen 3 Methane 4 Ethane

2 Answers  

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In which year was the meteorology department founded?

0 Answers  

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Quartz crystals normally used in quartz clocks etc. is chemically 1 Sodium silicate 2 Germanium oxide 3 Silicon dioxide 4 None of these

1 Answers  

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Write two characteristics of Science.

0 Answers   Mahatma Gandhi University,

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Which of the following is not a chemical reaction? 1 Burning of paper 2 Digestion of food 3 Conversion of water into steam 4 Burning of coal

1 Answers   NTS,

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Carbon tetrachloride fire extinguisher should not be used in closed rooms, because it produces a poisonous gas called 1 Carbon monoxide 2 Phosphine 3 Phosgene 4 None of these

1 Answers  

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Which was the international geo - physical year?

0 Answers  

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