When Fe2+ changes to Fe3+ in a reaction Materials of Construction Mcqs September 11, 2019 BILAL KHATTAK0 A.it loses an electron B.it gains an electron C.it gains a proton D.it loses a proton Related Mcqs: When ship crosses Date-line from west to east: A redox reaction is The mass of a meson with charge +e is Stability of nucleus depends upon the ratio of A hydrogen atom has Which of the following particles is unstable? Which is the heaviest? Which of the following is the lightest? The positron is almost as heavy as The particle mainly responsible for the stability of nucleus is