Chemistry PYQ 94 of 152 · Everyday Chemistry

What is/are the full form(s) of HMX?
1. High Melting Explosive
2. High-Density Monoatomic Xenon
3. Hedge Monetizing Xenocurrency
4. Her Majesty's Explosive
Select the correct answer using the codes given below.

  1. A1 and 2
  2. B2 and 3
  3. COnly 1
  4. D1 and 4

69th BPSC

Show answer and explanation

Correct answers: (c) Only 1 or (d) 1 and 4

Explanation

The usual full form of HMX is High Melting Explosive, a thermally stable explosive that resists detonation at high temperatures.

It is used in military, aerospace and oil-and-gas applications where exposure to extreme heat is a concern.

Some sources also expand HMX as Her Majesty’s Explosive (statement 4). The Commission’s key is "Only 1", option (c); "1 and 4", option (d), is also accepted here. Statements 2 and 3 are made up.

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