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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$(a)$ Effective nuclear charge for nitrogen is $3.90$
$(b)$ $IP$ of $Ne$ is more than $Na^+$
$(c)$ Order of electron negativity $sp > sp^2 > sp^3$
$(d)$ Order of acidic character $NH_3 < PH_3 < AsH_3$
$(A)$ Micelle formation is an exothermic process.
$(B)$ Micelle formation is an endothermic process.
$(C)$ The entropy change is positive.
$(D)$ The entropy change is negative.