Last Updated on October 20, 2024 by studentabc.xyz
SCIENCE [SEBA] Selected Important Questions
Q:- Fe203+2Al→Al203+2Fe [ HSLC Yr-2018 & 2016] Mark=1
The above reaction is an example of
(a) a combination reaction
(b) a decomposition reaction
(c) a displacement reaction
(d) a double displacement reaction
Q:- What happens when dilute hydrochloric acid is added to iron fillings ? [HSLC’2017] Mark=1
(a) Hydrogen gas and iron chloride and produced.
(b) Chlorine gas and iron hydroxide and produced.
(c) No reaction take place
(d) Iron salt and water are produced.
Q:- You take an aqueous solution of CuSO4 (blue in colour) in a test tube . Now dip a clean iron nail in CuS04 solution. Observe the test tube after 20 minutes (approx) [HSLC-2017] Marks-2
(i) Mention the change of the nail
(ii) Write a balanced chemical equation for the reaction
What To Know
- – You take an aqueous solution of CuSO4 (blue in colour) in a test tube .
- Now dip a clean iron nail in CuS04 solution.
- (ii) Write a balanced chemical equation for the reaction.