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
In which process, fused sodium hydroxide is electrolysed for the extraction of sodium?
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 |
Which is the correct sequence of solubility of carbonates of alkaline earth metals?
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.
Among the following the least thermally stable is
Why sodium hydroxide is much more water soluble than sodium chloride?
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.
Lye
Give the systematic name for the following.
Washing soda
Give the systematic name for the following.
Soda ash
