Alcohols react both as nucleophiles as well as electrophiles. Write one reaction of each type and describe its mechanism.

Ten one-rupee coins are put on top of each other on a table. Each coin has a mass m. Give the magnitude and direction of (a) the force on the 7th coin (counted from the bottom) due to all the coins on its top,(b) the force on the 7th coin by the eighth coin, (c) the reaction of the 6th coin on the 7th coin.

Write the balanced chemical equation for the following and identify the type of reaction in each case Zinc carbonate (s) rarr Zinc oxide (s) + Carbon dioxide (g)

Metal compound A reacts with dilute hydrochloric acid to produce effervescence. The gas evolved extinguishes a burning candle. Write a balanced chemical equation for the reaction if one of the compounds formed is calcium chloride.

Write the balanced chemical equation for the following and identify the type of reaction in each case Potassium bromide (aq) + Barium iodide (aq) rarr Potassium iodide (aq) + Barium bromide (s)

Write the balanced chemical equation for the following and identify the type of reaction in each case Magnesium (s) + Hydrochloric acid (aq) rarr Magnesium chloride (aq) + Hydrogen (g)

What is a Nickel-Cadmium cell? State its one merit and one demerit over lead storage cell. Write the over all reactions that occurs during discharging of this cell.

Write the balanced chemical equation for the following and identify the type of reaction in each case Hydrogen (g) + Chlorine (g) rarr Hydrogen chloride (g)

Sodium form a crystalline ionic solid with dihydrogen. The solid is non-volatile and non-conducting in nature. It reacts violectly with water to produce dihydrogen gas. Write the formula of this compound and its reaction with water. What will happen on electroysis of the melt of this solid?

Describe the oxidising action of Potassium dichromate and write the ionic equation for its reactions with iodide ion.