MCQ
The correct electronic configuration of $Ti(Z = 22)$ atom is
- ✓$1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}4{s^2}3{d^2}$
- B$1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}3{d^4}$
- C$1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}3{d^4}$
- D$1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}4{s^1}3{d^3}$
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If molar mass of hydrochloric acid is $M.$
$(I)$ They have high melting points, higher than those of pure metals
$(II)$ They are very hard
$(III)$ They retain metallic conductivity
$(IV)$ They are chemically more reactive than the pure metals

