Which compound is used as an antacid?
Which compound is used as an antacid?
The atomic number of an element is equal to the number of:
The atomic number of an element is equal to the number of:
The pH value of pure water at 25°C is:
The pH value of pure water at 25°C is:
Which salt is obtained by neutralization of HCl with NaOH?
Which salt is obtained by neutralization of HCl with NaOH?
Which type of bond is present in NaCl?
Which type of bond is present in NaCl?
Which gas is known as laughing gas?
Which gas is known as laughing gas?
Which element is present in all organic compounds?
Which element is present in all organic compounds?
The main ore of aluminium is:
The main ore of aluminium is:
Avogadro number is approximately:
Avogadro number is approximately:
The chemical formula of washing soda is:
The chemical formula of washing soda is:
The process of conversion of solid directly into gas is called:
The process of conversion of solid directly into gas is called:
Which gas is released during photosynthesis?
Which gas is released during photosynthesis?
The number of valence electrons in oxygen is:
The number of valence electrons in oxygen is:
The hardest naturally occurring substance is:
The hardest naturally occurring substance is:
The functional group –OH represents:
The functional group –OH represents:
Which metal is liquid at room temperature?
Which metal is liquid at room temperature?
The SI unit of amount of substance is:
The SI unit of amount of substance is:
Which acid is present in vinegar?
Which acid is present in vinegar?
The atomic mass unit (amu) is based on:
The atomic mass unit (amu) is based on:
Rusting of iron is an example of:
Rusting of iron is an example of: