Which of the following shows electrical conduction?
Which of the following shows greatest inert pair effect?
Which one of the following is used for writing on glass
(b) Hydrogen fluoride
(d) Hydrogen iodide
The shape of acetylene molecule is
The name fire damp is given to
Which of the following is not linked with methane?
(a) Coal gas
(b) Producer gas
(c) Marsh gas
(d) Natural gas
Liquid hydrocarbon is converted into a mixture of gaseous hydrocarbon by
The process by which vegetable ghee is manufactured is known as
Yeast is an important source of
(b) Vitamin B
(c) Vitamin C