Question

Match List-I with List-II.

List-I	List-II
(A) Hygroscopic water	(I) no of hydrogen nuclei
(B) Capillary water	(II) mean monthly temperature
(C) Neutron moisture meter	(III) adsorption forces
(D) Blaney-Criddle	(IV) surface tension

Choose the correct answer from the options given below:

• (A) - (I), (B) - (II), (C) - (III), (D) - (IV)
• (A) - (IV), (B) - (I), (C) - (III), (D) - (II)
• (A) - (III), (B) - (IV), (C) - (I), (D) - (II)
• (A) - (II), (B) - (I), (C) - (IV), (D) - (III)

Hint:

Match each water type or instrument with the physical force or input it depends on.

Answer 1

The Correct Option is C

Take List-II one item at a time and ask which soil-water idea it belongs to.
Adsorption forces describes water clinging to particle surfaces by molecular attraction, which is exactly hygroscopic water, so (III) goes with (A).
Surface tension describes water held in the curved menisci of soil pores, the classic explanation for capillary water, so (IV) goes with (B).
No of hydrogen nuclei is the physical quantity a neutron probe actually counts, since fast neutrons slow down mainly on hitting hydrogen atoms in water, so (I) goes with (C).
Mean monthly temperature is the key input of the Blaney-Criddle formula for estimating consumptive use, so (II) goes with (D).
\[\boxed{(A)-(III), (B)-(IV), (C)-(I), (D)-(II), \text{ option 3}}\]