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( a ) How would you prepare an aqueous solution of sulphurous acid ? ( 6 ) What substances are formed by its action on iodine ! 7. Describe a process for making caustic potash . 8. Write equations representing the chemical actions which ...
( a ) How would you prepare an aqueous solution of sulphurous acid ? ( 6 ) What substances are formed by its action on iodine ! 7. Describe a process for making caustic potash . 8. Write equations representing the chemical actions which ...
Pagina
( a ) How is green vitriol prepared ? ( 6 ) What substances are produced by heating it to a red heat in air ? 2. What chemical actions go on in the burning of coal in a grate ? 3. What substances are formed by the action of heat on the ...
( a ) How is green vitriol prepared ? ( 6 ) What substances are produced by heating it to a red heat in air ? 2. What chemical actions go on in the burning of coal in a grate ? 3. What substances are formed by the action of heat on the ...
Pagina
( a ) How are nitro - substitution products prepared ? ( 6 ) Given a mononitrotoluene ; how is it possible to determine whether it belongs to the ortho , meta , or para series ? 4. ( a ) What are sulphonic acids ?
( a ) How are nitro - substitution products prepared ? ( 6 ) Given a mononitrotoluene ; how is it possible to determine whether it belongs to the ortho , meta , or para series ? 4. ( a ) What are sulphonic acids ?
Pagina
Describe two general methods for preparing ethereal salts , mentioning the classes of salts to which each is applicable . 2. ( a ) What is the relation of glycocoll to acetic acid ? ( 6 ) How can glycocoll be prepared from acetic acid ?
Describe two general methods for preparing ethereal salts , mentioning the classes of salts to which each is applicable . 2. ( a ) What is the relation of glycocoll to acetic acid ? ( 6 ) How can glycocoll be prepared from acetic acid ?
Pagina
How are the following prepared : bismuth subnitrate , tartar emetic , and argentic nitrate . Write the formulas for these substances . 1 1 SEOOND PAPER . 1. ( a ) State , giving examples , the Law of Fixed Proportions .
How are the following prepared : bismuth subnitrate , tartar emetic , and argentic nitrate . Write the formulas for these substances . 1 1 SEOOND PAPER . 1. ( a ) State , giving examples , the Law of Fixed Proportions .
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