1.
Ore of chromium is called
2.
Which of the following is used as a fuel for power stations, factories, and ships?
3.
Which of the following is used as a fuel for buses, trucks, and trains?
4.
The percentage of nitrogen (N) in urea (CH4N2O) is
5.
Metallic compounds that occur naturally are called
6.
Compounds which are added in the soil to provide essential elements to plants are called
7.
The boiling point of naphtha is
8.
Which of the following used in paving roads and making roofing material?
9.
The process of separating metal from ore is called
10.
Which of the following is used as a fuel for motor cars and vehicles?
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