Sulphur pieces do not react with cold concentrated nitric acid . But sulphur powder reacts.
Suppose you want to incease the rate of reaction again. Which way you would choose ? Give reason.

Sulphur pieces do not react with cold concentrated nitric acid . But sulphur powder reacts. Explain the reason why the rate of chemical reaction is increased here ?

Add concentrated sulphuric acid to a test tube containing a small quan-tity of carbon. Heat it. What do you observe?

Take 5mL water in a test tube and slowly add concentrated sulphuric acid to it. Touch the bottom of the test tube. What do you feel? Is the reaction exothermic or endothermic?

Aniline first reacts with acetyl chloride producing compound A. A reacts with nitric acid/ sulphuric acid mixture and produces compound 'B', which hydrolyses to compound 'C'. What is C?

The chemical reaction between marble and dilute HCl is given CaCO_3+2HCl rarr CaCl_2+H_2O+CO_2 Suggest any two ways you would choose to incease the rate of this chemical reaction. Explain the reason.

C_(12)H_(22)O_(11) , CH_(3)CH_(2)COOH , CH_(3)CH_(2)Cl , CH_(3)CHO , CH_(3)CH_(2)CH_(2)OH , CH_(3)OCH_(3) when we react two compound among the given organic compound in the presence of sulphuric acid, a fragrant product is produced. 1. Choose the organic compounds which produced fragrant products after after reactions. 2. Write the chemical equation fo this reaction.