Question

statement 1:boiling is a bulk phenomenon statement 2:presence of impurities alters the boiling point of the water
option1: 1statementiscorrectoption
2:second
statement is correct option 3:both are correct

Answer 1

boiling is considered as bulk phenomenon because total molecules ( including interior molecules along with surface molecules) are involved during boiling of any liquid.

Answer 2

option 3 is correct.

boiling is a bulk phenomenon and presence of impurities causes elevation in boiling point.
For example:
Boiling point of pure water is 100 Celsius.
Boiling point of salt water is greater than 100 here salt is impurity..