Throwing of electrical sand particles on clouds causes -rain. How will you describe this?

As_2 S_3 sol particles are negatively charged. The. sol can be precipitated by adding BaCl_2 , solution. a How do you account for thè process? b. AICl_3 , is more efficient than BaCl_2 , in coagulating tbe sol. Justify. c. Throwing of electrical sand particles on clouds causè artificial rain. How will you describe this?

i) Rain water and séa, water differ in their behaviour towards soap. Give the difference and establish the chemistry behind this. ii) A water boiler in a factory burst due to high interior pressure. It was reported that the incident was occured due to certain dissolved salt in water used, As a chemistry student how will you explain this?

Solids can be classified into three types on the basis of their electrical conductivities. How will you explain such classification based on Band theory ?

Solids can be classified into three types on the basis of their electrical conductivities. How will you explain such classification based on band theory?

An orchid plant is growing on the branch of mango tree. How do you describe the interaction between orchid and mango tree?

Animals possess nerve or nervous systems to respond to their environment. But the single celled amoeba does not possesses any nerve cell , so, how it come to know whether a particle it encounters is a grain of sand and not its dinner by /

Raju noticed that while washing clothes by using rain water collected in a tank, the quantity of soap required was found to be less than that required using tap water. a. If Raju asked the reason behind it, how will you explain it? b. Also mention any two methods to overcome.it,