Given below are two statements :
Statement I : Gallium is used in the manufacturing of thermometers.
Statement II : A thermometer containing gallium is useful for measuring the freezing point ( 256 K ) of brine solution.
In the light of the above statement, choose the correct answer from the options given below :
Statement I : Gallium is used in the manufacturing of thermometers.
Statement II : A thermometer containing gallium is useful for measuring the freezing point ( 256 K ) of brine solution.
In the light of the above statement, choose the correct answer from the options given below :
- (A)Both Statement I and Statement II are false.
- (B)Statement I is false but Statement II is true.
- (C)Both Statement I and Statement II are true.
- (D)Statement I is true but Statement II is false.✓ Correct
Answer: (D)
Solution
Statement I is true: gallium has a very large liquid range (m.p. ~303 K, b.p. ~2676 K) and is used in high-temperature thermometers.
Statement II is false: gallium is used to measure high temperatures, not the low freezing point of brine (256 K).
Hence Statement I is true but Statement II is false.
Statement II is false: gallium is used to measure high temperatures, not the low freezing point of brine (256 K).
Hence Statement I is true but Statement II is false.
JEE Main · 2024 · 06 Apr 2024 · Shift 1 · Single correct option