Percentage of carbon in steel i ranges from
1). 1 to 5
2). 5 to 0
3). 0 to 0
4). 0 to 0
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1. Question 1.1:Define the term ‘amorphous’. Give a few examples of amorphous solids.
2. Type metal used in printing press is an alloy of
3. An electric iron has a heating element made of :
4. Which of the following metals form an amalgam with other metals ?
5. Question 14.8:What are the harmful effects of photochemical smog and how can they be controlled?
6. The product, 9-nitroanthracene is obtained from anthracene by the action of