The diagram below shows an experimental set-up to investigate osmosis.
Which of the following combinations of liquids would cause X to rise to the highest level in the glass tube after three hours?

The given diagram shows an experimental set-up for sample which contains 4.0 g of lead and 3.5 g of zinc. (Atomic mass of Zn = 65 u, O = 16 u and Pb = 207 u ). The composition of the sample at the end of the reaction will be.

The given apparatus shows a method to separate ethanol-water mixture. Which of the following statements are correct? I. During the process, the liquid with the highest boiling point distils over first. II. Ethanol reaches the upper part of the column first. III. Thermometer first shows a constant reading at 100^(@)C . IV. Ethanol vapours and water vapours both rise up the column but water vapours condense in the fractionating column and drop back into the distillation flask.

Each of question given below is based on the given diagram. The diagram show students studying either Physics, Chemistry, Biology or combinations of these subjects. Which of the following is NOT represented in the above diagram ? 1)The students who study Biology, Chemistry as well as Physics. 2)The students who study Chemistry and Biology but not Physics 3)The students who do not study any of the three subjects. 4) The students who study Biology but not Physics and Chemistry. 5) The students who study Physics and Chemistry but not Biology.

The figure given below shows three glass chambers that are connected by valves of negligible volume. At the outset of an experiment, the valves are closed and the chambers contain the gases as detailed in the diagram. All the chambers are at the temperature of 300 K and external pressure of 1.0 atm . Which of the following represents the total kinetic energy of all the gas molecules after both valves are opened? ( R=0.082 atm L K^(-1) mol^(-1)=8.314 JK^(_1)mol^(-1) )

Liquid flow from a higher to a level .Which of the following liquids can climb up the wall of the glass vessel in which it is placed ?

A science teacher has arranged a few test tubes as : Which of the following statements is incorrect about the given experimental set-up?