Web28 jun. 2024 · Answer. Question. Zinc granules on treating with an acid X, form zinc sulphate (ZnSO4) salt along with the evolution of a gas Y, which burns with a pop sound … WebTake equal quantities of dilute hydrochloric acid, sodium hydroxide solution and distilled water in three test tubes. Use red litmus paper and blue litmus paper to find out the …

0620 y20 sp 6 - Cambridge Assessment International Education

Litmus is a water-soluble mixture of different dyes extracted from lichens. It is often absorbed onto filter paper to produce one of the oldest forms of pH indicator, used to test materials for acidity. In an acidic medium, blue litmus paper turns red, while in a basic or alkaline medium, red litmus paper turns blue. Webacid, any substance that in water solution tastes sour, changes the colour of certain indicators (e.g., reddens blue litmus paper), reacts with some metals (e.g., iron) to … csp wa pty ltd canning vale

6. What is the effect of hydrochloric acid on the following …

WebA Drop of colourless liquid was placed on blue litmus paper. The litmus paper turned red. The liquid could be : (1) dilute hydrochloric acid (2) dilute sodium hydroxide solution (3) … Web1 M acetic acid 1 M hydrochloric acid 1M sodium chloride 1 M ammonia 1 M Sodium Hydroxide What color of litmus paper can be used to test a solution to see if it is acidic? litmus (red, blue) 1) Reaction of acids with metals: Drop a small piece of "mossy zinc" into one well with hydrochloric acid and into another well with Acetic acid. Web26 apr. 2024 · 4. Answer the following questions on the basis of laboratory preparation of hydrogen chloride gas. (a) Name the reactants used. Ans. Sodium chloride and conc. … eams-a help desk email