Identify the method by which Me3CCO2H can be prepared. A. Treating 1 mol of MeCOMe with 2 mole of MeMgI B. Treating 1 mol of MeCO2Me with 3 moles of MeMgI C. Treating 1 mol of MeCHO with 3 moles of MeMgI D. Treating 1 mol of dry ice with 1 mol of Me3CMgI

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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