1. The more ___________________ the standard reduction potential, the __________________ is its ability to displace hydrogen from acids.
(JEE 1986)
Answer: negative, greater
2. The electrolysis of molten sodium hydride liberates ______________ gas at the ____________.
(JEE 1989)
Answer H2, anode
3. When an aqueous solution of sodium fluoride is electrolysed, the gas liberated at the anode is _________________ . (JEE 1997 cp)
Answer: O2
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