Which one of the following properties is exhibited by phenol? A. It is soluble in aq. NaOH and evolves CO2 with aq. NaHCO3 B. It is soluble in aq. NaOH and does not evolve CO2 with aq. NaHCO3 C. It is not soluble in aq. NaOH but evolves CO2 with aq. NaHCO3 D. It is insoluble in aq. NaOH and does not evolve CO2 with aq. NaHCO3

in a physics laboratory a block x is balanced by a block Y of mass 200 kg,each are suspended from a balance of equal lever arms .the scale pan on X is at a height.H1=2 cm ,where as scale pan on Y is at height 1 cm above the floor.the error in weighing is (in gram)

consider the figure of a single riveted lap joint as follows

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cyclic heat engine operates between. temperature of 30 C. What is the least rate of heat rejection per kW net output of an engine. source temperature of 800 C and sink

 

 

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