/6

Science Quiz (for 12 to 16 years old): Quiz 17

1 / 6

Quartz crystals normally used in quartz clocks etc. is chemically

2 / 6

The gas usually filled in the electric bulb is

3 / 6

Washing soda is the common name for

4 / 6

Carbon, diamond and graphite are together called

5 / 6

Heavy water is

6 / 6

Chlorophyll is a naturally occurring chelate compound in which central metal is

Your score is

0%

Next quiz

Please rate the quiz

By WordPress Quiz plugin