i. Dalda available in the market is prepared from vegetable oil. Write the science bèhind it.

Dalda available in the maet is prepared from vegetable oil. Write the science behind it.

Hydrogen finds application in the preparation of vanaspathi from vegetable oils. Give the chemistry behind this.

Write a method to prepare Glucose from starch. Write the chemical equation of the reaction.

Chloroform can be prepared from Methane: Write the Chemical equation for the reaction.

The teacher said that elemental boron is prepared from borax. Write the chemical formula of borax.

Alkali metals and alkaline earth metals belong to the s-block of the periodic table. Write the chemical equation showing the preparation of Plaster of Paris from gypsum.

Some materials available in the laboratory are given below. Magnesium ribbon, marble powder, marble pieces, dilute HCl, concentrated HCl Write the balanced chemical equation of the reaction for preparation of Carbondioxide in less time

Aluminium is prepared industrially by Hall- Heroult process. Various steps in the concentration of ore are given below. Write them in the correct order. i)The precipitate formed is separated, washed and strongly heated to get alumina. ii) Crushed bauxite is leached with hot sodium hydroxide solution. iii) Impurities are removed from the sodium aluminate solution by filtration. iv) Solution is diluted after adding a little aluminium hydroxide, to precipitate aluminium hydroxide .