Match the metal (Column I) with its reaction with oxygen (Column II): Column I Column II A. Potassium (i) Does not react event at high temperatures B. Zinc (ii) Gets coated with black-coloured layer of oxide C. Copper (ii) ii) Does not burn at ordinary temperature D. Silver (iv) Burns vigorously (a) A-(iv), B-(iii), C-ü), D-(i) (b) A-(iv), B-(ii), C-(i), D-(iii) b (c) A-(iii), B-(ii), C-(i), D-(iv) (dA-(iv), B-(ii), C-(ii), D-(i) : con(Koi h?)
Answers
Answer:
A- iv , B-iii , C-ii , D-i
Explanation:
(A-iv) potassium reacts Vigorously as potassium (k) is a very highly reactive metal.
(B-iii) Zinc (Zn) Doesn't burn at ordinary temperature as zn is less reactive so we need to apply heat to make it able to react.
(C-ii) Copper (cu) get coated with black colored layer of oxide because when cu react with oxygen a black colored compound cuo get produced.
Cu + O2 ---> Cuo (Black in color)
(D-i) Silver (Ag) Doesn't react even at high temperature bcoz Ag is very much less reactive metal so it doesn't react even at high temperature.
Answer:
What are difference between breathing and respiration ?
Explanation:
with oxygen (Column II): Column I Column II A. Potassium (i) Does not react event at high temperatures B. Zinc (ii) Gets coated with black-coloured layer of oxide C. Copper (ii) ii) Does not burn at ordinary temperature D. Silver (iv) Burns vigorously (a) A-(iv), B-(iii), C-ü), D-(i) (b) A-(iv), B-(ii), C-(i), D-(iii) b (c) A-(iii),
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