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2026 /
Quiz 10

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NCAT Practice Test - Practice Test - Chemistry - Liquids - 2026 Quiz

Attempt 10 MCQs on NCAT Practice Test - Practice Test - Chemistry - Liquids (Year 2026) | Quiz 10

91. Why do water pipes burst in freezing temperatures?

Expansion can burst pipes
Expansion cannot burst pipes
Water contracts on freezing
No effect

92. At what temperatures do H₂O and D₂O have maximum density?

4°C for H₂O, 11.2°C for D₂O
4°C for D₂O, 11.2°C for H₂O
0°C for both
100°C for both

93. How does hydrogen bond length change as water is cooled below 4°C?

Increases
Decreases
Remains same
Fluctuates

94. How does thermal conductivity of water change with temperature?

Increases with temperature
Decreases with temperature
Constant
Zero

95. What is unusual about the heat capacity of water?

Minimum around 35°C
Maximum around 0°C
Constant
Decreases with T

96. How does increasing pressure affect the freezing point of water?

Lowers freezing point
Raises freezing point
No effect
Irregular

97. What is the primary cause of water's anomalous behavior?

Directional hydrogen bonding
Ionic bonding
Covalent network
Metallic bonding

98. What happens to hydrogen bonds when ice melts?

15% of hydrogen bonds break
All hydrogen bonds break
No hydrogen bonds break
Covalent bonds break

99. What is the specific heat capacity of water?

4.18 J/g·K
2.09 J/g·K
1.00 J/g·K
8.36 J/g·K

100. What is the surface tension of water at 20°C?

72.8 mN/m
22.8 mN/m
100 mN/m
50 mN/m

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