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InOrganic Chemistry -- Metals
1.
The magnitude of enthalpy of formation of alkali metal halides decreases
in the order
- A.iodide > bromide > chloride > fluoride
- B.bromide > iodide > fluoride > chloride
- C.fluoride > chloride > bromide > iodide
- D.fluoride > chloride > iodide > bromide
- Answer
- Report
Answer : [C]
2.
Alkali metals react with hydrogen forming ionic hydrates. The reactivity
of the alkali metals with hydrogen decreases in the order
- A.Li > Na > K > Rb > Cs
- B.Na > K > Rb > Cs > Li
- C.Rb > Cs > Li > Na > K
- D.Cs > Rb > K > Na > Li
- Answer
- Report
Answer : [A]
3.
Which of the following reacts with nitrogen to form a nitride which
finally hydrolyses to ammonia?
- A.K
- B.Li
- C.Na
- D.Cs
- Answer
- Report
Answer : [C]
4.
Which of the following pairs cannot exist together in solution?
- A.Na2CO3 and NaOH
- B.Na2CO3 and NaHCO3
- C.NaHCO3 and NaOH
- D.NaHCO3 and NaCl
- Answer
- Report
Answer : [D]
5.
Among the following, which has the least ionic mobility?
- A.Na+
- B.K+
- C.Li+
- D.Cs+
- Answer
- Report
Answer : [C]
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