Question : Which of the following is odourless, tasteless, and non-toxic and is made up of 93.05% methane, nitrogen, carbon dioxide, propane, and traces of ethane?

Option 1: LPG

Option 2: Chlorine

Option 3: CNG

Option 4: Gobar gas

Question : Which element behaves chemically both as metal and non-metal?

Option 1: Argon

Option 2: Boron

Option 3: Xenon

Option 4: Carbon

Question : The discovery and understanding of electromagnetic induction is based on a long series of experiments carried out by ______.

Option 1: Planck and Fermi

Option 2: Einstein

Option 3: Faraday and Henry

Option 4: Rutherford

Question : Acid rain is caused due to pollution of the atmosphere by:

Option 1: oxides of Carbon and Nitrogen

Option 2: oxides of Nitrogen and Sulphur

Option 3: oxides of Nitrogen and Phosphorous

Option 4:  None of these

Question : Who co-invented the device called Cyclotron in 1934 along with Ernest Lawrence to investigate the nuclear structure?

Option 1: Joseph John Thomson

Option 2: Ernest Rutherford

Option 3: Milton Stanley Livingston

Option 4: Enrico Fermi