Download App

Acids, Bases and Salts — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceAcids, Bases and Salts1 Mark
MCQ
Plaster of Paris hardens by :
  • A
    Giving off $\mathrm{CO}_2$
  • B
    Changing into
  • ✓
    Combining with water $\mathrm{CaCO}_3$
  • D
    Giving out water
✓

Answer

Correct option: C.
Combining with water $\mathrm{CaCO}_3$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q" from Acids, Bases and Salts→Acids, Bases and Salts — all question types→Science STD 10 question papers→CBSE Board STD 10 question papers→CBSE Board question paper generator→

Similar questions

A chemical reaction in which heat is evolved is called a/an :
→
A sulphide ore is converted into metal oxide by the process of :
→
In order to study saponification reaction we first prepare $20\%$ solution of sodium hydroxide. If we record the temperature of this solution just after adding sodium hydroxide flakes to water and also test its nature using litmus, it may be concluded that the process of making this solution is:
→
Sodium hydrogencarbonate when added to acetic acid evolves a gas. Which of the following statements are true about the gas evolved?
  1. It turns lime water milky.
  2. It extinguishes a burning splinter.
  3. It dissolves in a solution of sodium hydroxide.
  4. It has a pungent odour.
→
The magnetic field lines :
→
Which of the following statements is not a correct statement about the trends when going from left to right across the periods of periodic Table.
→
Lens of an eye is a transparent spherical structure which :
→
Zinc blende ore can be converted into zinc oxide by the process of:
→
Which of the following property is generally not shown by metals?
→
Two of the following organisms have a holozoic mode of nutrition. These organisms are :
→