A. Sn B. Fe C. Zn D. Both A and C

A. An antiseptic B. A bleaching agent C. Both A and B D. None

A. High temperatures and high pressure B. High temperatures and low pressure C. Low temperatures and high pressure D. Low temperatures and low pressure

A. Atomic number B. Atomic mass C. Spin of proton D. Spin of neutron

A. Neutral medium B. Acidic medium C. Alkaline medium D. Alkaline and acidic medium

A. Hydrogen atoms with excess energy B. Hydrogen molecules with excess energy C. Hydrogen ions in the excited state D. Solvated protons

A. Amide B. Primary amine C. Secondary amine D. Alcohol