The correct match between Item-I and Item-II is :

Item-I (drug)		Item-II (test)
A	Chloroxylenol	P	Carbylamine test
B	Norethindrone	Q	Sodium hydrogen carbonet test
C	Sulphapyridine	R	Ferric chloride test
D	Penicillin	S	Bayer's test

Which amongst the following is the strongest acid ?

Which one of the following statements regarding Henry's law is not correct ?

Consider the reversible isothermal expansion of an ideal gas in a closed system at two different temperatures T₁ and T₂ (T₁ < T₂). The correct graphical depiction of the dependence of work done (w) on the final volume (V) is :