Archive
20th of March 2017
Chemistry
Q:


1. 1.8g of E2O3 contains 5.6 of ‘E’. How many moles of E does 16.8g of the element ‘E’ contain? 2.The electronic configuration of an ion Z2- is 2,8 . If the number of neutrons present in the parent atom ‘Z’ is 11 then the nucleon number of Z’ is .




Sahil Kumar Sahoo - CBSE - Class X

Monday, March 20, 2017 at 18:13:PM

A:

Solution for your first query:

Monday, March 20, 2017 at 18:24:PM