JEE CHEMISTRY MCQ: HYDROGEN

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The element used for welding metals with high
melting points is:

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Correct option: C

H_2

Option C (

H_2

) is correct because atomic hydrogen produced by the oxy-hydrogen flame can reach temperatures of 4000 K, suitable for welding metals with high melting points.

More Questions from HYDROGEN

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Hydrogen is prepared on large scale for industrial use 10 volumes of

{H_2}{O_2}

has a strength of The pH of a solution of

{\mathrm{H}_2}{\mathrm{O}_2}

is 6.0. Some chloride gas is bubbled into this solution. Which of the following is correct? An aqueous solution of hydrogen peroxide is The pair that yields the same gaseous product on reaction with water: S-I: The unsaturated fat (oils) are changed to saturated fat by

{H}_2

in presence of finely divided

{Ni}

.

S-II:

{H}_2

Shows addition around doubly bonded carbon atoms.