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Let the capacity of the tank be 150 units. Efficiency of pipes (M+N) = 150/25 = 6 units/hour Efficiency of pipe N = 150/30 = 5 unit/hour Therefore, efficiency of pipe M = 6 – 5 = 1 unit/hour New efficiency of pipe M = 2.5 units/hour Required time taken = 150/2.5 = 60 hours
In a compound, the elements are always present in definite proportions by:
In the periodic table of elements, what happens to the atomic radius as you move from left to right across a period?
The fossil of Archaeopteryx represents the evidence of origin of
On a clean glass plate, a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because:
What is the chemical name for baking soda?
Which of the following is a noble gas ?
What is the chemical name of the Laughing Gas?
_________is a formula for rust.
Which of the following is a water soluble vitamin?
What is the chemical name of baking soda?
