Statement 1: Emulsion of water and oil is unstable and separates in two layers.
Statement 2: It is stablised by adding excess electrolytes.

Statement-1 : In the combustion of ethane, limiting reactant is ethane Statement-2 : Oxygen in air is always present in excess.

Statement-1 : If there is a water bubble in air then excess pressure inside it is (4T)/(R) , where T is surface tension of water and R is the radius of the bubble. Statement-2 : If there is a water drop in air then excess pressure inside it is (2T)/(R) 1 Statement-3 : If there is an air bubble in water then excess pressure inside it is (4T)/(R)

Statement 1: Ozone hole is the thinning of ozone layer. Statement 2: Ozone is a poisonous gas that leads thinning of the atmosphere.

Assertion : For stabilisation of an emulsion a third component called emulsifying agent is usually added. Reason : Emulsions of oil in water are unstable and sometimes they separate into two layers on standing.

A mixture of chloroform and water taken in a separating funnel gest separated into two layers. Which one of the these two substance is expected to occupy the upper layer and why ?

Statement 1 : PbCl_(2) and Hg_(2)Cl_(2) precipitates can be separated by hot water . Statement 2 : Hg_(2)Cl_(2) is backend by aq. NH_(3)

Statement 1: Sphalerite copper glance are the sulphide ores of zinc and copper Statement 2: It is possible to separate two sulphide ores by adjusting proportion of oil to water or by using depressant

Given below are two statements : Statement I : Sphalerite is a sulphide ore of zinc and copper glance is a sulphide ore of copper. Statement II : It is possible to separate two sulphide ores by adjusting proportion of oil to water or by using 'depressants' in a froth flotation method. Choose the most appropriate answer from the options given below :