Question

A,B and C are 3 elements which undergo chemical reactions according to following equations : a) A2O3 + 2B −−−−−−> B2O3 + 2A b) 3CSO4 + 2B −−−−−−> B2SO4 + 3C c) 3CO + 2A −−−−−−> A2O3 + 3C Answer the following: i) Which element is most reactive? ii) If an element D is least reactive write an equation to justify it. iii) Arrange elements in the increasing order of their reactivities.

Answer 1

Answer:

ngle-replacement reaction is a chemical reaction in which one element is ... Predict the products of this double-replacement equation: KBr + AgNO 3 → ? Answer ... All compounds of NO 3 − and C 2H 3O 2 −, None ... According to the solubility rules, both Ca(NO 3) 2 and KBr are soluble. ... b) Na 2CO 3 + Sr(NO 2) 2 → ?

Explanation:

Answer 2

Answer:

i) Most reactive - B

ii) When a compound D reacts with any other compound of A/B/C it will be displaced

iii) D<C<A<B

Hope this helps you