Which of the following statements is/are correct?
A. Hydrogen peroxide is a strong dibasic acid.
B. Hydrogen peroxide is a thermodynamically unstable liquid.
C. The heaviest isotope of hydrogen is three times heavier than hydrogen.
D. Water is more viscous than heavy water.
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Only A and B
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Only B and C
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Only C and D
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Only B and C
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Only A and D
D
Correct answer
Explanation
Correct statement:
Hydrogen peroxide is a thermodynamically unstable liquid.
# Hydrogen peroxide is thermodynamically unstable with respect to the formation of H2O and O2.
H2O2(l) → H2O(l) + 1/2O2(g)
But the speed with which the reaction occurs is controlled by kinetic factors.
Correct statement:
The heaviest isotope of hydrogen is three times heavier than hydrogen.
# Hydrogen atomic mass - 1.00794 u
Tritium atomic mass - 3.0160492777 u