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Alkali Metals - Chemistry Jamb Past Questions and Answers

Chemistry Questions And Answers On Alkali Metals
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Chemistry Jamb Past Questions


Question 1 :



When sodium chloride and metallic sodium are each dissolved in water

A. Both processes are exothermic
B. Both processes are endothermic
C. The dissolution of metallic sodium is endothermic
D. The dissolution of metallic sodium is exothermic
E. The dissolution of sodium chloride is explosive


Question 2 :



When sodium chloride and metallic sodium are each dissolved in water

A. Both processes are exothermic
B. Both processes are endothermic
C. The dissolution of metallic sodium is endothermic
D. The dissolution of metallic sodium is exothermic
E. The dissolution of sodium chloride is explosive


Question 3 :



Which ONE of the following statements is true?

A. All alkali metals salts dissolves with dissociation in water
B. Most ionic substances are easily vaporized
C. Ionic substances exist only as liquid
D. Non-ionic substances are good electrolytes
E. Nitrogen exists in a trivalent state in ammonium salts


Question 4 :



Which of the following is NOT an alkali?

A. NH3
B. Mg(OH)2
C. Ca(OH)2
D. NaOH


Question 5 :



Which of the following is not an alkali?

A. Ca(OH)2
B. NH3
C. NaOH
D. Al(OH)3






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