Which is correct statement ?

CHEMISTRY · Single correct · CBSE · Chemistry · Aldehydes, Ketones and Carboxylic Acids · Aldehydes, Ketones and Carboxylic Acids

Problem

Which is correct statement ? (1) LiCl is more soluble in polar solvent (water) than NaCl. (2)

K_{a_2}

fumaric acid is more than

K_{a_2}

of maleic acid (3) The O—O bond length in

O_2[AsF_4]

is shorter than

KO_2

(4) In

CF_2=C=CF_2

molecule all the four fluorine atoms are in the same plane