Question No : 6
Which of the following statements is wrong?
1. The conductivity of meals
decrease with
increase in temperature
2. Ionic solids conduct electricity de to
presence of ions
3. There is no superconductor at 25°C
4. The conductivity of electrolytic conductors
increase with increase in temperature
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Answer: 2 , 3 are wrong
Explanation: 2 is wrong because ionic solid does not conduct electricity. they conduct only in molten or solution state
3 is wrong because lanthanum decahydride can acts as super condutor at 25c
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