Welcome to your Science Quiz 29
1.
Which one of the following pairs of metals constitutes the lightest metal and the heaviest metal, respectively?
2.
Mixture of which one of the following pairs of gases is the cause of occurrence of most of the explosions in mines?
3.
Which one of the following is also called Stranger Gas?
4.
What are Rubies and Sapphires chemically known as?
5.
Which one among the following is called philosopher’s wool?
6.
Which one of the following does not contain silver?
7.
Which one of the following types of glass can cut off ultraviolet rays?
8.
Which one of the following non-metals is not a poor conductor of electricity?
9.
Which one of the following is another name of RDX? [2007]
10.
Consider the following chemicals: [2006]
- BenzeneÂ
- Carbon tetrachlorideÂ
- Sodium CarbonateÂ
- TrichloroethyleneÂ
Which of the above is/are used as dry cleaning chemicals?
