Question
Give reasons why
Give reasons why: (a) Hydrochloric acid cannot form an acid salt. (b) Electronegativity increases across a period.
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The diagram given below shows the electroplating of a spoon with silver
The diagram given below shows the electroplating of a spoon with silver. With reference to the diagram, answer the following questions: (a)…
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During the manufacture of sulphuric acid, a chemist collected the gas formed after catalytic oxidation of sulphur dioxide
During the manufacture of sulphuric acid, a chemist collected the gas formed after catalytic oxidation of sulphur dioxide. (a) Name the gas…
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An unsaturated hydrocarbon having two carbon atoms was made to react with two moles of hydrogen gas
An unsaturated hydrocarbon having two carbon atoms was made to react with two moles of hydrogen gas in the presence of a…
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Using suitable chemicals from the box, write balanced chemical equations for the preparation of the following salts
Given below are some chemicals. Lead nitrate, Copper, Hydrochloric acid, Lead oxide, Iron, Sodium carbonate, Copper carbonate, Chlorine Using suitable chemicals from…
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Elements P, Q, and R are in the same period of the modern periodic table
Elements P, Q, and R are in the same period of the modern periodic table. P readily loses its one valence electron…
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Equal volumes of ammonia gas and chlorine gas are kept under the same conditions of temperature and pressure
Equal volumes of ammonia gas and chlorine gas are kept in two different containers under the same conditions of temperature and pressure.…
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Differentiate between the following pairs based on the criteria given in the bracket
Differentiate between the following pairs based on the criteria given in the bracket: (a) Acetic acid and Sulphuric acid (number of replaceable…
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Complete and balance the following equations
Complete and balance the following equations: (a) C2H4Br2 + KOH (alcoholic) ⟶ (b) NH3 (excess) + Cl2 ⟶ (c)
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Element A belongs to group 15 and period 2 of the Periodic Table
Element A belongs to group 15 and period 2 of the Periodic Table. (a) Identify the element A. (b) Write the formula…