MCQ
The prefix ${10^{18}}$ is
- AGiga
- BNano
- CMega
- ✓Exa
Giga $(G)$ represents $10^9$.
Nano $(n)$ represents $10^{-9}$.
Kilo represents $1000$. Thus, $1 \,kg =1,000\, g$
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$4NH_3 + 5O_2 \to 4NO + 6H_2O$
$(a)$ Diborane is prepared by the oxidation of $\mathrm{NaBH}_{4}$ with $\mathrm{I}_{2}$.
$(b)$ Each boron atom is in sp $^{2}$ hybridized state.
$(c)$ Diborane has one bridged $3$ centre$-2-$electron bond.
$(d)$ Diborane is a planar molecule.
The option with correct statement(s) is :