Science
Consider the following reactions :
(a) Dilute hydrochloric acid reacts with sodium hydroxide.
(b) Magnesium oxide reacts with dilute hydrochloric acid.
(c) Carbon dioxide reacts with sodium hydroxide.
It is found that in each case :
options
- Salt and water is formed.
- Neutral salts are formed.
- Hydrogen gas is formed.
- Acidic salts are formed.
Related Questions
The products formed when Aluminium and Magnesium are burnt in the presence of air respectively are :
options
- Al3O4 and MgO2
- Al2O3 and MgO
- Al3O4 and MgO
- Al2O3 and MgO2
The following table shows the pH values of four solutions A, B, C and D on a pH scale :
The solutions A, B, C and D respectively are of a
options
- Strong acid, weak acid, neutral, strong base
- Weak acid, neutral, weak base, strong base
- Weak acid, neutral, strong base, weak base
- Weak acid, neutral, strong base, strong acid
Reaction between two elements A and B, forms a compound C. A loses electrons and B gains electrons. Which one of the following properties will not be shown by compound C?
options
- It has high melting point.
- It is highly soluble in water.
- It has weak electrostatic forces of attraction between its oppositely charged ions.
- It conducts electricity in its molten state or aqueous solution
The metals obtained from their molten chlorides by the process of electrolytic reduction are :
options
- Gold and silver
- Calcium and magnesium
- Aluminium and silver
- Sodium and iron