A polymide formed from ethylene glycol and a dlcarboxylic acid, which is used to make fabrics as a blend with cotton. Give the chemical equation showing the synthesis of the polyamide.

A polymide formed from ethylene glycol and a dlcarboxylic acid, which is used to make fabrics as a blend with cotton. Identify the above polyamide.

A polyamide formed from ethylene glycol and a dicarboxylic acid, which is used to make fabrics as a blend with cotton. Find out the name of dicarboxylic used here.

Give the chemical equation which represent the oxidising action of Cr_2O_7^2- In acidic medium.

Some information regardirg a particular, compound is given below. i) A deep.purple black crystal which' is moderately soluble in water at room temperature and it is prepared from pyrolusite a) İdentify the compound b) Give the chemical reactions involved in the preparation of,this compound - c) Upon heating to 746 K, what happens to this compound? Give the equation

Benzamide (C_6H_5CONH_2) on heating with bromine and NaOH gave a compound A which is soluble in dilute acid. When A is warmed with chloroform and alc KOH, B is formed which has an unpleasant odour. Using chemical equation represent the formation of B from A.

If you treat aniline with fuming H_2SO_4 at 475K it gives a compound which is used for the preparation of sulpha drugs.Write the chemical equation.

Compounds of nitrogen, phosphorus and sulphur such as ammonia, phosphoric acid and sulphuric acid are used in fertilizer industry. Write the chemical equation for the preparation of phosphoric acid (H_3PO_4) from H_3PO_3

X' is a polymer formed from an unsaturated halogen compound which is chemically inert and is used for making frying pans. a. Identify the polymer X b. Why do we use X for making non- sticky frying pan?

When benzene is treated with chloroine in the presence of sunlight a compound which is commonly used as an insecticide is formed.Write the chemical equation.