Home
Class 10
CHEMISTRY
A solution of a substance 'X' is used in...

A solution of a substance 'X' is used in whitewashing.
(i) Name the substance 'X' and write its formula.
(ii) Write the reaction of the substance 'X' named in (i) above with water

Text Solution

Verified by Experts

(i) The substance .X. is quick lime (calcium oxide) and its formula is CaO.
(ii) `underset (("Quick lime"))(CaO)+underset(("Water"))(H_(2)O)rarrunderset(("Slaked lime"))(Ca(OH)_(2))+"Heat"`
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL REACTIONS AND EQUATIONS

    OSWAAL PUBLICATION|Exercise NCERT CORNER (Textbook Exercises)|20 Videos
  • CHEMICAL REACTIONS AND EQUATIONS

    OSWAAL PUBLICATION|Exercise TOPIC-2 (Types of Chemical Reactions-Corrosion and Rancidity) (LONG ANSWER TYPE QUESTIONS)|7 Videos
  • CARBON AND ITS COMPOUNDS

    OSWAAL PUBLICATION|Exercise NCERT Corner (Textbook Exercises)|15 Videos
  • METALS AND NON-METALS

    OSWAAL PUBLICATION|Exercise NCERT CORNER (Textbook Exercises)|16 Videos

Similar Questions

Explore conceptually related problems

A solution of a substance 'X' is used for whitewashing. (i) Name the substance 'X' and write its formula. (ii) Write the substance of the substance 'x' named in (i) above with water.

Write equations for the reactions. (i) Iron with steam (ii) Calcium and potassium with water

Name the first member of alkynes and write its molecular formula.

(i) Solution of a substance 'X' is used for testing carbon dioxide . Write the equation of the reaction of 'X' with carbon dioxide. (ii) How is 'X' obtained? Write chemical equation.

A brown substance 'X' on heating in air forms a substance 'Y'. When hydrogen gas is passed over heated 'Y', it again changes back into 'X'. Name the substances X and Y.

Write the structure of X in the above reaction.

(a) Crystals of a substance their colour on heating in a closed test tube but regained it after sometime when they were allowed to cool down. Name the substance and write its formula and explain the phenomenon involved. (b) name the acid and base that would be used to prepare the following salts: (i) Potassium sulphate (ii) Ammonium chloride.

In the following chemical reaction ''zinc oxide reacts with carbon to produce zinc metal and carbon monoxide.'' ZnO+CrarrZn+CO (i) Identify the substance getting oxidised and the one getting reduced. (ii) State the reason for choosing the substances in (i) . (iii) Name the type of reaction and give another example of similar type of reaction .