Q. 95
The metal X react
Answer :
(a) The ‘pop’ sound indicates the presence of hydrogen gas. Metals react with dilute acids to form metallic salts and hydrogen gas. Some metals react with bases to produce hydrogen gas. Generally, non-metals do not react with acids. For example, Aluminium reacts with dilute hydrochloric acid to form Aluminium chloride and hydrogen gas. The balanced chemical equation for the reaction is:
2Al(s) + 6HCl(aq) 2AlCl3(aq) + 3H2(g).
Aluminium is an amphoteric metal. It reacts with both acids and bases. The reaction is highly exothermic and produces a lot of heat. There is rapid evolution of hydrogen gas during this reaction. Aluminium metal reacts with a base called sodium hydroxide to produce sodium aluminate and hydrogen gas.
(b) The name of the gas is hydrogen.
Rate this question :
The least reactiv
Lakhmir Singh & Manjit Kaur - ScienceThe element Z bur
Lakhmir Singh & Manjit Kaur - ScienceWhich of the foll
Lakhmir Singh & Manjit Kaur - ScienceWhich among the f
Lakhmir Singh & Manjit Kaur - ScienceWhen a vessel is
Lakhmir Singh & Manjit Kaur - ScienceYou are given a s
Lakhmir Singh & Manjit Kaur - ScienceWhich of the foll
Lakhmir Singh & Manjit Kaur - ScienceAn element burns
Lakhmir Singh & Manjit Kaur - ScienceThe metal X react
Lakhmir Singh & Manjit Kaur - Science