Glycerol on reaction with concentrate \(H_{2}SO_{4}\) gives

An alcohol (A) on heating with concentrated H_(2)SO_(4) gives alkene (B) as major product and (B) can shown the geometrical isomerism . The compound (A) is :

An alcohol X on heating with concentrated H_(2)SO_(4) gives an alkene Y which can show geometrical isomerism . The alcohol X is

Formic acid (HCOOH) on heating with concentrated H_(2)SO_(4) gives

Arrange reactivity of given alcohols in decreasing order for dehydration reaction with concentrates H_(2)SO_(4)

Excess of PCl_(5) reacts with concentrated H_(2)SO_(4) giving :

Ethylene glyco, HOCH_(2)CH_(2)OH, on heating with concentrated H_(2)SO_(4) gives mainly.

The reaction of HCOOH with conc. H_2 SO_4 gives :

An isomer of the complex Co(en)_(2)(H_(2)O)IC l_(2) , on reaction with concentrated H_(2)SO_(4) , it suffers loss in weight and on reaction with AgNO_(3) solution gives a yellow precipitated which is isoluble in NH_(3) solution. Q. Total number of space isomers of the formula of the above complex is: