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Q. Who was the inventor of positron?
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Q. Calculate the number of atoms in 39.4 g gold. Molar mass of gold is 197g/mol:
Q. Concave lens always form image
Q. The SI unit mobility of charge (μ) is:
Q. Which of the following angiosperm is vesselless -
Q. Which of the following is a Lewis acid ?
Q. Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?
Q. Which one of the following is not the unit of energy
Q. In which of the following era began the Self replicating RNA molecules on Earth ?
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