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  9. Q98

TGPSC Group-I 2022 · Question 98 of 140

Match the following bases as per their usage : A. Ammonium 1. Fire extinguisher Hydroxide B. Sodium 2. Bleaching powder Hydroxide C. Calcium 3. Soap preparation Hydroxide D. Aluminium 4. Removing grease Hydroxide stains

science-tech

  1. AA-4 B-1 C-2 D-3
  2. BA-4 B-3 C-1 D-2
  3. CA-4 B-3 C-2 D-1Correct
  4. DA-4 B-1 C-3 D-2

Answer: C. A-4 B-3 C-2 D-1

Explanation

Bases and uses: Ammonium hydroxide — removing grease stains (A-4); Sodium hydroxide — soap preparation (B-3); Calcium hydroxide — bleaching powder (C-2); Aluminium hydroxide — fire extinguisher (D-1). Answer: (3).

Source: TGPSC Group-I 2022 Prelims (Master Paper, Notification No. 04/2022)

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