Lactometer is a type of hydrometer which is used to measure the specific gravity of:

(A) Honey
(B) Water
(C) Milk
(D) Olive oil

Q. A saccharometer is a hydrometer used for determining the amount of _______ in a solution.
(A) Sugar
(B) Salt
(C) Acid
(D) None of these

Q. A saccharometer is a hydrometer invented by:
(A) Robert Boyle
(B) Thomas Thomson
(C) Galileo
(D) None of these

Answers:
1. (C) Milk
2. (A) Sugar
3. (B) Thomas Thomson