Question 1

One of the essential minerals in the human body is salt. How much salt (NaCl) is in the average adult human body?

Accepted Answer

250g

Question 2

Catalytic converters are generally made from:

Accepted Answer

transition metals

Question 3

If you fill a glass to the brim with ice water and the ice melts, what will happen?

Accepted Answer

The water level will drop slightly as the ice melts.

Question 4

The green colour seen in firework displays is due to the chloride salt of:

Accepted Answer

barium

Question 5

All of the following are amino acids except:

Accepted Answer

Adenine

Question 6

Water-based liquids can be described as acidic, neutral, or basic, with respect to pH. Which of these describes milk?

Accepted Answer

Slightly acidic

Question 7

What happens when a drop of glycerol is added to crushed KMnO4 spread on a paper?

Accepted Answer

The paper ignites

Question 8

The mercury and sodium street lamps light up because of:

Accepted Answer

atomic emission

Question 9

Noble gases are inert because they have completed outer electron shells. Which of these elements isn't a noble gas?

Accepted Answer

Chlorine

Chemistry fun quiz

2) Catalytic converters are generally made from: