MCQ
Which has maximum bond angle
- ✓$CH{F_3}$
- B$CHC{l_3}$
- C$CHB{r_3}$
- DAll have maximum bond angle
$CHF _3\,<\, CHCl _3\,<\, CHBr _3$
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$X$ $ = 1{s^2},\,\,2{s^2}2{p^6},\,\,3{s^2}3{p^6},\,\,4{s^2}$
and $Y$ $ = 1{s^2},\,\,2{s^2}2{p^6},\,\,3{s^2}3{p^5}$
The compound formed by combination of $X$ and $Y$ is
${C_({graphite)}} + {O_2} \to C{O_2};\,\Delta H = - 393.4\,kJ/mole$
${C_({graphite})} \to {C_{{\rm({diamond})}}};\,\Delta H = $
Assertion $(A)$ : The first ionization enthalpy of $3 d$ series elements is more than that of group $2$ metals
Reason $(R)$ : In $3d$ series of elements successive filling of d-orbitals takes place.
In the light of the above statements, choose the correct answer from the options given below :
