Question
Which one of the following is commonly used for pulp
bleaching in the paper industry?Solution
Hydrogen peroxide is extensively used as a bleaching and oxidizing agent in the paper and pulp industry. Use of hydrogen peroxide helps to achieve a grade of brightness that is suitable for high-grade magazine papers, board, and tissue products.Â
A projectile is fired at an angle of 45° with a speed of 20 m/s. What is the maximum height reached? (Take g = 10 m/ s² )
Kindly Study the following questions carefully and choose the right answer:
Transpiration is mainly effective during _______ ?
Zinc metal liberates hydrogen gas on reaction with dilute HCl, but hydrogen gas is not liberated, when zine is reacted with nitric acid. What is the rea...
What is the principle behind the operation of a washing machine?
The moment of inertia of a hollow sphere of mass M and radius R about its diameterÂ
Which of the following statements about holes is incorrect ?
Kindly Study the following questions carefully and choose the right answer:
Which of the following is/are true about the human heart?
I....
A current-carrying conductor placed in a magnetic field experiences a force because:
Name the gas evolved when ethanoic acid is added to sodium carbonate?
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