Q81 · CSIR NET Chemistry, June 2011
Paper: CSIR NET June 2011 · Subject: Inorganic Chemistry · Chapter: Main Group Elements · Topic: Phosphazenes Sn Compounds · Marks: 2 · Difficulty: Medium
Match List-I (compounds) with List-II (application) and select the correct answer using the codes given below the lists.
| List 1 | List 2 |
|---|---|
| (A) Tri sodium phosphate | (i) Plasticizer |
| (B) Tri aryl phosphates | (ii) Water softener |
| (C) Tri ethyl phosphate | (iii) Toothpaste |
| (D) Calcium hydrogen phosphate | (iv) Insecticides |
(a)(A)-ii (B)-i (C)-iv (D)-iii
(b)(A)-i (B)-ii (C)-iv (D)-iii
(c)(A)ii- (B)-iii (C)-iv (D)-i
(d)(A)-iii (B)-i (C)-ii (D)-iv
Answer
Answer: A ✓ checked by 4AB · confidence high
Explanation
Na₃PO₄ is a water softener, triaryl phosphates are plasticisers, triethyl phosphate is used in insecticides, and CaHPO₄ is in toothpaste (a).
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