Combustion And ...

Which of the following is a fossil fuel?

What are the most suitable temperature and pressure conditions for the formation of petroleum?

Which of the following are used these days to make the head of a matchstick?

a. Antimony trisulphide
b. Potassium chlorate
c. Red phosphorus
d. White phosphorus

Which instrument is fitted in automobiles to reduce the harmful emissions from its exhaust?

Which of the following, when buried under the earth for a long period, give(s) rise to petroleum?

Liquefied petroleum gas consists mainly of

Which of the following is not a constituent of petroleum?

Which among the following is the correct full form of CNG?

Observe the following Venn diagram and identify the correct option naming W, X, Y and Z:

Hydrogen can be used as a fuel in the form(s) of

Why is the flame of an LPG stove blue in colour?

Which of the following fuels is the best?

Which of the following substances has the highest calorific value?

Which among the following is an important application of coal?

Which of the following statements is/are true regarding the process of carbonisation?

Which among the following is not a constituent of coal gas?

Which of the following forms of carbon has the lowest percentage of carbon?

Match the fuels given in the left column with their uses given in the right column.

What does the word 'petroleum' mean?

Which of the following statements regarding fractional distillation of petroleum is/are true?

I. The lower boiling fraction is collected in the upper parts of the fractional column.
II. Natural gas is collected in the uppermost part of the chamber,
III. The temperature is higher in the upper parts of the chamber.