Question
World Ozone Day is observed annually
on?Solution
The day was introduced in 1987, when the Montreal Protocol was signed. Since 1994, World Ozone Day is celebrated on 16th September which was established by the United Nations General Assembly. This day reminds people about the depletion of the Ozone Layer and to find solutions to preserve it. The theme for 2022 was " 'Global Cooperation Protecting Life on Earth".
The force of attraction between the particles of matter is maximum in______.
Which of the following pair of element β atomicity is correct?
I. Helium β monoatomic
II. Oxygen β triatomic
The process of gaining electrons is known as:
The atomic bomb is based on which principle?
In which medium, velocity of sound is maximum?
Which one of the following is commonly used for pulp bleaching in the paper industry?
Which of the following is the lightest metal?
Which element is commonly used in nuclear reactors for producing electricity by nuclear fission?
Which gas is added under pressure to make soft drinks fizzy?
_____ is used for making chemical apparatus like beakers, flasks, etc.