Inspite of the electronic configuration, 1s²2s²2p², carbon is tetraavalent because?

Which of the following compounds will give a precipitate with an aqueous ammoniacal solution of copper (l) chloride?

The efficiency of petrol as a fuel in high-compression internal combustion engines improves with an increase in the amount of?

Ethanol reacts with aqueous sodium mono-oxoio date (l) to give a bright yellow solid with a characteristic smell. The product is?

The most volatile fraction obtained from fractional distillation of crude petroleum contains?