Q 1 :

A student added aqueous chlorine to aqueous sodium bromide and the resulting mixture was shaken with an equal volume of trichloroethane.

Which diagram best represents the observation made?

Q 2 :

Match the Column – I and Column – II

	Column – I		Column – II
A)	Hypophosphoric acid	P)	All hydrogens are ionizable in water
B)	Pyrophosphoric acid	Q)	Lewis acid
C)	Boric acid	R)	Monobasic acid
D)	Hypophosphorous acid	S)	$s{p}^3$ hybridized central atom

 

• A-PS; B-PS; C-QR; D-RS

   

• A-QR; B-PS; C-PQ; D-RS

   

• A-PS; B-QR; C-RS; D-S

   

• A-QS; B-PR; C-PQ; D-P

   

Q 3 :

Which one of the following orders is not in accordance with the property stated against it?

• $F>Cl>Br>I$ : Electronegativity

   

• $F_2>C{l}_2>B{r}_2>I_2$ : Bond dissociation energy

   

• $F_2>C{l}_2>B{r}_2>I_2$ : Oxidizing power

   

• $HI>HBr>HCl>HF$ : Acidic strength