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InOrganic Chemistry -- Metals
11.
The metallic lustre of sodium is explained by its
- A.fcc lattice structure
- B.the effusion of sodium ions
- C.the oscillation of its mobile valence electrons
- D.the band theory of metals
- Answer
- Report
Answer : [C]
12.
Which of the following forms the least ionic chloride?
- A.Be
- B.Ca
- C.Mg
- D.Sr
- Answer
- Report
Answer : [A]
13.
Lithium shows a diagonal relationship with
- A.sodium
- B.silicon
- C.nitrogen
- D.magnesium
- Answer
- Report
Answer : [D]
14.
Sodium thiosulphate may be prepared by any of the following reactions.
Which of them is called Spring’s reaction?
- A.Na2SO3+S ⟶ Na2S2O3
- B.Na2S + I2 + Na2SO3 ⟶ Na2S2O3+ 2NaI
- C.2Na2S + Na2CO3 + 4SO2 ⟶ 3Na2S2O3 + CO2
- D.S + 6NaOH ⟶ Na2S2O3 + 2Na2S + 3H2O
- Answer
- Report
Answer : [B]
15.
Which of the following statements is correct?
- A.Sodium reacts with liquid ammonia to give hydrogen.
- B.Sodamide is decomposed by water, producing ammonia
- C.Sodamide is decomposed by water, producing nitrogen
- D.Sodamide is used as a reducing as well as a dehydrating agent.
- Answer
- Report
Answer : [B]
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