Most commonly used rubber vulcanising agent is___________________?

Related Mcqs:

Presence of carbonaceous matter in the sewage____________________?

A. Causes reduction in its dissolved oxygen content thereby endangering the life of aquatic creatures B. Reduces sulphate ions to sulphides causing obnoxious smell C. Increases the quantity of chlorine used for its purification D. All A, B. and C....

Hydrocyanic acid (HCN) is used as an insecticide for____________________?

A. Controlling timber degradation by ants B. Controlling poultry lice C. Potato beetle D. Citrus fruits...

______________ is an ore of lead?

A. Quartz B. Galena C. Siderite D. Chalcopyrite...

Solvay process as compared to dual process (i.e. modified Solvay process) ?

A. Can use low grade brine B. Has less corrosion problems C. Involves higher investment in NH3 recovery units than that for crystallisation units for NH4Cl D. Both B. and C....

Laboratory glass wares which reacts with hydrofluoric acid, are made of the ______________ glass?

A. Lead B. Borosilicate C. Soda lime D. Alkali silicate...