List of top Science and Technology Questions on Organic Chemistry asked in Maharashtra Class X Board

How much time a satellite in an orbit at height 35780 km above earth's surface would take, if the mass of the earth would have been four times its original mass?

Observe the figure and answer the following questions:
(a) Which gas is released as effervescence in the big test tube?
(b) What is the colour change in the lime water?
(c) Write the related chemical equation.