The idiom ‘play it by the ear’ means ‘to decide how to deal with a situation as it develops, rather than acting according to plans made earlier’.
Bronze is an alloy of-
The pH of a neutral solution is —
The fuel that is used in modern submarines is -
The noble gas used in radiotherapy is
The element used in the manufacture of safety matches is —
Manganite is an ore/mineral of
Petroleum is a mixture of-
The nucleus of an atom consists of-
The gas used for filling weather balloons is-
The chemical name of'Common salt’