9th Class Chemistry MCQs

Which one of the following act as oxidizing agent?

1. Be
2. Mg
3. Na
4. Cl

Which gas can turn lime water milky?

1. O2
2. NO2
3. CO2
4. N2

Which compound is known as lunar caustic?

1. KNO3
2. AgNO3
3. NaOH
4. NaNO3

IMPORTANT: Read all 9th Class Subjects MCQs for more practice and preparation.