Question

Quien sabe el resultado de esra operacion -5(-6+3)+2-(7×2)
-5( )+2-( )
+2

Answer 1

Respuesta:

K 2 Cr2 O 7 on heating with aqueous NaOH gives (a) CrO-24 (b) Cr(OH) 3 (c) ... KI and acidified potassium dichromate solution is (a) +3 (b) +2 (c) +6 (d) +4 66