1
Q
what is the chemical name of pearl ash
A
Potassium carbonate
2
Q
Green colour in fireworks is caused due to
A
barium
3
Q
Which acid is mainly found in vinegar?
A
Acetic acid
4
Q
Rayon is a synthetic fiber obtained from?
A
Celulose
5
Q
The main thinking part of the brain is
A
forebrain
6
Q
Which noble gases chiefly used in airport landing lights and in light houses?
A
Krypton
7
Q
Who is known as the tuber man of India? He recently was awarded the India biodiversity award 2021?
A
Shaji NM
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