12 g of commercial zn is made to react with
excess dil H₂So4.
The total volume of H2 gas
literated was found to be 4.2 l at 500 mm
of Hg pressure and
pressure and 279 . Determine percentage
purity of zn

answer is a

explanation:

answer; economic order quantity;

its first and third is your answer i did the qustion the fourth isnt right

cytokinesis is the splitting of a cell membrane to form 2 identical daughter cells. it's similar to mitosis as both cells have identical copies of dna and cytokinesis is a step in the mitotic cycle.