Q. 885.0( 3 Votes )
Which of the following pair of reactants can undergo a displacement reaction under appropriate conditions? A. MgSO4 + Fe
B. ZnSO4 + Fe
C. MgSO4 + Pb
D. CuSO4 + Fe
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(a) no displacement reaction will take place with the solution of copper sulphate, as gold is less reactive then the copper.
(b) there will not be any reaction between copper and copper sulphate.
(c) copper will be replaced by zinc from the copper sulphateLakhmir Singh & Manjit Kaur - Chemistry
An element A burns with golden flame in air. It reacts with another element B, atomic number 17 to give a product C. An aqueous solution of product C on electrolysis gives a compound D and liberates hydrogen. Identify A, B, C and D. Also write down the equations for the reactions involved.NCERT - Science Exemplar
A non-metal A which is the largest constituent of air, when heated with H2 in 1:3 ratio in the presence of catalyst (Fe) gives a gas B. On heating with O2 it gives an oxide C. If this oxide is passed into water in the presence of air it gives an acid D which acts as a strong oxidising agent.
(a) Identify A, B, C and D.
(b) To which group of periodic table does this non-metal belong?NCERT - Science Exemplar
Give the formulae of the stable binary compounds that would be formed by the combination of following pairs of elements.
(a) Mg and N2
(b) Li and O2
(c) Al and Cl2
(d) K and O2NCERT - Science Exemplar
(i) Electrolytic reduction
(ii) Reduction with Carbon
(iii) Reduction with Aluminium
(f) TinLakhmir Singh & Manjit Kaur - Chemistry