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»Unlabelled » 2018 WAEC CHEMISTRY PRACTICAL COMPILED BY REALITY

Sunday, 1 April 2018

2018 WAEC CHEMISTRY PRACTICAL COMPILED BY REALITY





QUESTION: C and D  are examples of inorganic salts,carryout  the following exercise on them.record your observation and identify any gasses evolved.state the conclusion you draw from the result of each test
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a.put C in a test tube and add about 5cm ^3 of distilled water and stir.test with litmus paper,divide into three portions.

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i. to the first portion,add sodium hydroxide solution【HCL】in drop and excess

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ii. to the second portion,add aqueous ammonia in drop and in excess

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iii. to the third portion,add HNO3 followed by AgNO3 aq

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iv. to the mixture of 1aiii above add excess NH3 aq

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b. put D  in a test tube and add about 5cm^3 of distilled water and stir.test with litmus paper,divide it into two portions

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i. to the first portion,add aqueous  NAOH in drop and excess

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ii. to the second portion,add BaCL② + dilute HCL aq  in drop and in excess.

READ ALSO:- SEE DATA PROCESSING 2018 ANSWERS 

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