NUCLEOPHILIC-ADDITION TO OLEFINS .5. REACTION OF 1,1-DINITRO-2,2-DIPHENYLETHYLENE WITH WATER AND HYDROXIDE ION IN 50-PERCENT ME2SO-50-PERCENT WATER - COMPLETE KINETIC-ANALYSIS OF HYDROLYTIC CLEAVAGE OF THE C=C DOUBLE-BOND IN ACIDIC AND BASIC SOLUTION