1.

Why concentrated sulphuric acid or hydrochloric acid is not used for preparation of hydrogen gas in the laboratory?

Answer»

<STRONG>Explanation:

Both the acids are quite strong as when we test their PH levels they range between 0-1 which MAKE it highest RANKED ACID which can dissociate maximum H+ ions on dissolving with water and also

HCl or H2SO4 acid not used in the laboratory preparation of hydrogen.



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