Advertisements
Advertisements
Question
The compound (X) on heating gives a colourless gas and a residue that is dissolved in water to obtain (B). Excess of CO2 is bubbled through aqueous solution of B, C is formed. Solid (C) on heating gives back X. (B) is
Options
CaCO3
Ca(OH)2
Na2CO3
NaHCO3
Advertisements
Solution
Ca(OH)2
APPEARS IN
RELATED QUESTIONS
Which of the following compounds will not evolve H2 gas on reaction with alkali metals?
Which of the following has the highest tendency to give the reaction
\[\ce{M^+_{(g)} ->[Aqueous][Medium] M^+_{(aq)}}\]
Sodium is stored in _________.
In case of alkali metal halides, the ionic character increases in the order
Match the flame colours of the alkali and alkaline earth metal salts in the bunsen burner
| (p) Sodium | (1) Brick red |
| (q) Calcium | (2) Yellow |
| (r) Barium | (3) Violet |
| (s) Strontium | (4) Apple green |
| (t) Cesium | (5) Crimson red |
| (u) Potassium | (6) Blue |
A colourless solid substance (A) on heating evolved CO2 and also gave a white residue, soluble in water. Residue also gave CO2 when treated with dilute HCl.
Why sodium hydroxide is much more water soluble than sodium chloride?
Write the chemical equations for the reactions involved in the Solvay process of preparation of sodium carbonate.
An alkali metal (x) forms a hydrated sulphate, \[\ce{X2SO4.10H2O}\]. Is the metal more likely to be sodium (or) potassium?
Give the systematic name for the following.
Soda ash
