Question
What do the following denote?
a. $N$
b. $2\ N$
c. $\mathrm{N}_2$
d. $2 \mathrm{~N}_2$
a. $N$
b. $2\ N$
c. $\mathrm{N}_2$
d. $2 \mathrm{~N}_2$
✓
Answer
a. $N$ - One atom of nitrogen.
b. $2 \mathrm{~N}-$ Two separate atoms of nitrogen.
c. $\mathrm{N}_2$ - One molecule of nitrogen.
d. $2 \mathrm{~N}_2$ - Two molecules of nitrogen.
b. $2 \mathrm{~N}-$ Two separate atoms of nitrogen.
c. $\mathrm{N}_2$ - One molecule of nitrogen.
d. $2 \mathrm{~N}_2$ - Two molecules of nitrogen.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
If a man jumps out from a boat, the boat moves backwards. Why?
Why does a gas fill a vessel completely?
Name $A,B,C,D,E$ and $F$ in the following diagram showing change in its state.
→ Differentiate between carrier and vector.
Which of the following are not compounds?
- Chlorine gas
- Potassium chloride
- Iron
- Iron sulphide
- Aluminium
- Iodine
- Carbon
- Carbon monoxide
- Sulphur powder
What is classification?
What is exosmosis?
Which types of ribosomes are found in prokaryotes and eukaryotes?
What is the position of Notochord in the body of:
- Urochordata.
- Cephalochordata?
Give two necessary conditions without which work is not said to be done in science.