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Q. The chief source for the production of nitrogeneous fertilizers is:
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Q. Which one among the following is not a mixture?
Q. The most electropositive element among the following is
Q. Which one of the following animals can hear ultrasonic sound ?
Q. The ratio of the mean value over half cycle of the r.m.s. value of an AC of :
Q. Which one of the following is an antidiuretic hormone ?
Q. Which among the given is not a nucleon
Q. Two richest known sources of edible protein are?
Q. Who among the following had discovered gravity?
Q. Atoms of same element having different mass numbers are called__________
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