CORRECT-INCORRECT STATEMENT Correct statement(s) is/are A. Atomic hydrogen \& oxy-hydrogen torch...

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CORRECT-INCORRECT STATEMENT
Correct statement(s) is/are
A. Atomic hydrogen \& oxy-hydrogen torches are used for cutting \& welding purposes.

B. Atomic hydrogen atoms are allowed to recombine on the surface to be welded to generate the temperature of \( 4000 \mathrm{~K} \).
C. Hydrogen is used as a rocket fuel in space research.
D. Hydrogen produce pollution and releases lesser energy per unit mass of fuel in comparison to gasoline and other fuels.
(1) A and D
(2) A, B and C
(3) C and D
(4) Only D
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