section (Q57 to Q61): In the following Questions, the Assertion and Reason have been put forward. Read the statements carefully and choose the correct alternative from the following:
(a) Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.
(b) The Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.
(c) Assertion is true but the Reason is false.
(d) The statement of the Assertion is false but the Reason is true.
57. Assertion: Al2O3, is an amphoteric oxide.
Reason: Al2O3 reacts with acid as well as base to form salt and water.
"58. Assertion: Nitrogen is a non-metal.
Reason: Nitrogen has 5 valence electrons."
"59. Assertion: Copper does not reacts with the H2SO4.
Reason: Copper is more reactive than hydrogen"
"60. Assertion: Highly reactive metals are obtained by electrolytic reduction of their molten ore.
Reason: Highly reactive metals can be extracted by chemical reduction."
"61. Assertion: Silver becomes black in colour when exposed to atmosphere.
Reason: Silver reacts with H^S gas to form Ag,S which is black in colour."
Answers
Answered by
3
Answer:
all are correct
Explanation:
Similar questions
Math,
5 months ago
Environmental Sciences,
5 months ago
Science,
10 months ago
Biology,
10 months ago
Social Sciences,
1 year ago
Math,
1 year ago