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63@9@4@40@11@2@46 63 ÷ 9 x 4 + 40 – 11 x 2 = 46 7 x 4 + 40 – 11 x 2 = 46 28 + 40 – 22 = 46
Which of the following elements is NOT a zero-group element?
Match the following gases with their typical uses:
List I (Gas) List II (Uses)
A) A...
How many periods are there in the Modern Periodic Table?
Which of the following is NOT a physical change?
Which element is used in pencil leads?
Malathion is primarily used as a/an:
The Nuclear Fusion on the Sun’s surface result into formation of Atoms.
What change occurs when camphor is heated?
The atoms which contains same number of Electrons are known as:
Which of the following statements about colloids is NOT true?