Select the option figure which is embedded in the given

Which of the following statement is/are true?

I. Metal oxides are acidic in nature

II. Non-metallic oxides are basic in nature

Acid rain is caused due to pollution of the atmosphere by:

What is heavy water?

The motion of an object under free fall is an example of which of the following?

Which radioactive element is used in heart pacemakers?

A mixture of carbon monoxide and hydrogen is known as ______

Which of the following alkali metals has the highest specific heat?

What changes will happen to a bowl of ice and water kept at exactly zero degree Celsius?

Bases react with acids to form ________.

Which is the lightest and most abundant chemical element, constituting roughly 75 % of the Universe’s elemental mass?