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Sum of the ages of all the students in the class = 33 × 14 = 462 years Sum of the ages of the students along with teacher = 34 × 15.5 = 527 years So the age of the teacher = 527 – 462 = 65 years
Oil and water can form a stable dispersion with the help of a substance commonly called a(n):
The green colour of the leaves is due to-
Which acid is majorly found in Orange?
Identify the pairing that is not correctly matched.
(I) Dry ice - Solid form of carbon dioxide
(II) Fullerene - An allotrope of hydr...
Which of the following is a non-metal?
Which of the following statements about colloids is NOT true?
Protons were discovered by
Identify the acid commonly used for glass etching.
The substance that is added to make natural rubber strong and more bouncy is-
What is the pH value of a solution that is neither acidic nor basic?