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18 29 40 -2 -3 -4 16 26 36 Then now HCF of 16,26,36 =2.
Which of the following non-metallic element shows allotropy in the liquid state?
A bullet is fired from a rifle which recoils after firing. The ratio of kinetic energy of the rifle to that of the bullet is –
Which one of the following is commonly used for pulp bleaching in the paper industry?
Which of the following acid is found both in tomato and wood sorrel?
Which of the following gas usually causes explosions in coal-mines?
What is the permissible concentration of residual chlorine present in drinking water in mg/L?
Which base is present in soap?
If water smells bad, then that odor can be removed by adding:
Who is known the father of modern chemistry?
Which of the following is true regarding the periodic table?