Question

fill in the blanks

1.The _ were the first and the earliest chemist.

2.The alchemists were mainly concerned with converting metals to _ .

3.A mixture of two or more metals is called an _ .

4.The two gases name the by Antoine lavoisier are _ and _ .

5._ helps in growth of microorganism that spoil food .

6.Polycot is formed of _ and _ .

7._ are used to kill insects in the agricultural fields .
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Answer 1

Answer:

1)Greeks

2)gold

3)Alloy

4)hydrogen ,oxygen

5)Moisture

6)Polyester ,cotton

7)Insecticides