|

Chemistry

Correct the following statements:
(a) Hydrogen is separated from CO by passing the mixture through caustic potash solution.
(b) All metals react with acids to give hydrogen.
(c) Hydrogen is dried by passing it through conc. H₂SO₄.
(d) Very dilute nitric acid reacts with iron to produce hydrogen.
(e) Conc. H₂SO₄ reacts with zinc to liberate hydrogen.

Hydrogen

71 Likes

Answer

(a) Hydrogen is separated from CO₂ by passing the mixture through caustic potash solution.

(b) All the metals above hydrogen in the metal activity series react with acids to give hydrogen.

(c) Hydrogen is dried by passing it through fused calcium chloride.

(d) Very dilute nitric acid reacts with magnesium [Mg] and manganese [Mn] to produce hydrogen.

(e) Dilute H₂SO₄ reacts with zinc to liberate hydrogen.

Answered By

51 Likes

Related Questions

Choose terms from the options given in brackets to complete these sentences.
(a) When CuO reacts with hydrogen, …………… is reduced to …………… and …………… is oxidized to …………… . (CuO, H₂, Cu, H₂O)
(b) Hydrogen is …………… soluble in water. (sparingly, highly, moderately)
(c) Metals like ……………, …………… and …………… give H₂ with steam. (iron, magnesium, aluminium, sodium, calcium)
(d) Sodium …………… reacts smoothly with cold water. (metal, amalgam, in the molten state)
(e) A metal …………… hydrogen in the activity series gives hydrogen with …………… acid or …………… acid. (above, below, dilute hydrochloric, concentrated hydrochloric, dilute sulphuric).
View Answer