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prexam · 1 year ago
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Question_of_the_Day
The acylation of salicylic acid with acetic anhydride gives
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prexam · 2 years ago
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Some polar crystals produce small electric current on heating. This phenomenon is called
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prexam · 2 years ago
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Which of the following results in a self adjusting force?
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prexam · 2 years ago
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When a conservative force does positive work on a body; the potential energy of the body
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prexam · 4 months ago
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Large variations of densities with change in pressure and temperature are exhibited by
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prexam · 9 months ago
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Out of Cu, Ag, Fe and Zn, the metal which can displace all others from their salt solution is
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prexam · 1 year ago
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The color of lanthanides and actinides is due to
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prexam · 1 year ago
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A closed pipe of 10 cm length has its fundamental, half that of the second overtone of an open end pipe, find the length of the pipe:
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prexam · 1 year ago
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A closed end organ pipe has a frequency of 100 Hz as its fundamental note. The frequency of third harmonic will be:
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prexam · 1 year ago
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Finger prints on a piece of paper may be detected by sprinkling fluorescent powder on the paper and then looking it into
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prexam · 1 year ago
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The quantity of electricity needed to liberate 0.1 gram equivalent of an element at the electrode is
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prexam · 1 year ago
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The relation between angle of incidence and angle of refraction was discovered by
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prexam · 1 year ago
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Under the influence of air and light, chloroform decomposes into
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prexam · 1 year ago
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__ force is defined in order to apply Newton's laws of motion in acceleration motion.
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prexam · 1 year ago
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The oxidation number of sodium in sodium amalgam is
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prexam · 1 year ago
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According to Boyle's law, at constant temperature, pressure of gas is directly proportional to its
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