The P-Block Elements Quiz-5

Question 1

Which of the following represents the correct order of increasing $pK_a$ values of the given acids?

Accepted Answer

$HClO_4 < HNO_3 < H_2CO_3 < B(OH)_3$

Answer

$HNO_3 < HClO_4 < B(OH)_3 < H_2CO_3$

Answer

$B(OH)_3 < H_2CO_3 < HClO_4 < HNO_3$

Answer

$HClO_4 < HNO_3 < B(OH)_3 < H_2CO_3$

Question 2

In which case, the order of acidic strength is not correct?

Accepted Answer

$HIO_4 > HBrO_4 > HClO_4$

Answer

Hl > HBr > HCl

Answer

$HClO_4 > HClO_3 > HClO_2$

Answer

$HF > H_2O > NH_3$

Question 3

The relative basic character of the following is

Accepted Answer

$ClO_4^- < ClO_3^- < ClO_2^- < ClO^-$

Answer

$ClO^- < ClO_2^- < ClO_3^- < ClO_4^-$

Answer

$ClO_3^- < ClO_4^- < ClO_2^- < ClO^-$

Answer

$ClO_2^- < ClO^- < ClO_3^- < ClO_4 ^-$

Question 4

The correct order of acidic strength is

Accepted Answer

$Cl_2O_7 > SO_2 > P_4O_{10}$

Answer

$K_2O > CaO > MgO$

Answer

$CO_2 > N_2O_5 > SO_3$

Answer

$Na_2O > MgO > Al_2O_3$

Question 5

The correct order of bond energy is

Accepted Answer

$Cl_2 > Br_2 > F_2 > I_2$

Answer

$Cl_2 > F_2 > Br_2 > l_2$

Answer

$I_2 > Br_2 > Cl_2 > F_2$

Answer

$I_2 > Br_2 > F_2 > Cl_2$

Game Settings