Carbonates and Bicarbonates
Trending Questions
Q.
What is the common name for ?
Q. Sulphur powder is burnt in air and the gas evolved (A) is collected in a test tube. (A) is allowed to pass over moist litmus paper where a compound (B) is formed.
Mark the correct answer.
Mark the correct answer.
- A is H2
B is H2SO4
Litmus turns red to blue - A is SO2
B is H2SO4
Litmus turns blue to red - A is SO2
B is H2SO3
Litmus turns red to blue - A is SO2
B is H2SO3
Litmus turns blue to red
Q. is the common name of calcium hydroxide.
- Quick lime
- Slaked lime
- Caustic soda
Q. Ammonia when dissolved in water yields ammonium and ions.
- nitrate
- hydroxide
- hydrogen
Q. What is a slag?
Q. Which gas is usually liberated when an acid reacts with a metal? Illustrate with an example. How will you test for the presence of this gas?
Q. Which gas is usually liberated when an acid reacts with a metal? Illustrate with an example. How will you test for the presence of this gas?
Q. Which gas is usually liberated when an acid reacts with a metal? Illustrate with an example. How will you test for the presence of this gas?
Q. is the common name of calcium hydroxide.
- Quick lime
- Slaked lime
- Caustic soda
Q. In the reaction-
CaO+H2O→Ca(OH)2+HeatenergyCalciumoxideWaterCalciumhydroxide
The possible state of Ca(OH)2 is:
The possible state of Ca(OH)2 is:
- Liquid.
- Aqueous.
- Gaseous.
- Solid.
Q. Which of the following salt of calcium is used in the preparation of superphosphate of lime?
- Ca3(PO3)2
- Ca3(PO4)2
- Ca(HPO4)2
- CaSO4
Q. One of the constituents of baking powder is sodium hydrogen carbonate, the other constituent is:
- Hydrochloric acid
- Tartaric acid
- Acetic acid
- Sulphuric acid
Q. Which gas is usually liberated when an acid reacts with a metal? Illustrate with an example. How will you test for the presence of this gas?