Question Text
Question 1 :
Lewis dot symbol indicates the number of electrons of inner shell.
Question 2 :
In CaF$_2$, the number of electron(s) transferred from calcium to fluorine atoms are_____.
Question 7 :
Depending on Lewis structure, $OF_2, O_2F_2$ and $S_2F_2$ which of the following statement is incorrect?
Question 8 :
Which of the following statement is incorrect for formation of sodium chloride?
Question 9 :
A solid compound "A" consists of simple ions.<br/>Nature of the bond present in A will be:
Question 11 :
Which of the following shows the Lewis dot formula for $CO_2$?
Question 12 :
An element which has 2 electrons less than that in Ne is
Question 13 :
The type of bonds present in ${ PH }_{ 4 }I$ are:<br/>
Question 16 :
The formal charges of $N_{(1)}, N_{(2)}$ and $O$ atoms in $: \overset {. .}{N_{(1)}} = N_{(2)} = \overset {. .}{O}:$ are respectively
Question 18 :
Which of the following species are hypervalent?<br>$1. ClO_{4}^{-}, 2. BF_{3}, 3. SO_{4}^{2-}, 4. CO_{3}^{2-}$
Question 20 :
The formal charges of $C$ and $O$ atoms in $C{ O }_{ 2 }\left( :\ddot { O } =C=\ddot { O } : \right) $ are respectively: