Advertisements
Advertisements
Question
Answer the questions below relating your answers only to salts in the following list: Sodium chloride, anhydrous calcium chloride, copper sulphate-5-water?
- What name is given to the water in the compound copper sulphate-5-water?
- If copper sulphate-5-water is heated, anhydrous coppersulphate is formed. What is its colour?
- By what means, other than healing, could you dehydrate copper sulphate-5-water and obtain anhydrous coppersulphate?
- Which one of the salts in the given list is deliquescent?
Solution
- Water of crystallization
- White
- By heating with any dehydrating agent
- Anhydrous calcium chloride
APPEARS IN
RELATED QUESTIONS
The pH of a salt used to make tasty and crispy pakoras is 14. Identify the salt and write a chemical equation for its formation. List its two uses.
Complete and balance the following chemical equations:
`NaCl + NH_3 + H_2O +CO_2`→
The aqueous solution of one of the following salts will turn phenolphthalein indicator pink. This salt is:
(a) KCl
(b) K2SO4
(c) K2CO3
(d) KNO3
The metal salt A is blue in colour. When salt A is heated strongly over a burner, then a substance B is eliminated and a white powder C is left behind. When a few drops of a liquid D are added to powder C, it becomes blue again. What could be A, B, C and D
Write the name and formula of one salt each which contains:
two molecules of water of crystallisation
Explain ‘salt hydrolysis’
You are asked to prepare hard water in your laboratory. Select a group from the following groups of salts, any salt of which you may dissolve in distilled water to obtain hard water.
(A) NaCl; Na2SO4; KCl
(B) NaCl; CaCl2; KCl
(C) CaCl2; CaSO4; MgSO4
(D) Na2SO4; CaSO4; MgSO4
Identify the following substance:
Gas C has an offensive smell like rotten eggs.
Which of the following is not an acidic salt?
An aqueous solution of a salt turns blue litmus to red. The salt could be the one obtained by the reaction of ______.