Question : Which among the following is liquid non-metal?

Option 1: Mercury

Option 2: Bromine

Option 3: Water

Option 4: Alcohol

Question : Which one of the following forms of phosphorus is most reactive?

Option 1: Black phosphorus

Option 2: White phosphorus

Option 3: Violet phosphorus

Option 4: Red phosphorus

Question : Which of the following gases is most toxic ?

Option 1: Carbon dioxide

Option 2: Carbon monoxide

Option 3: Sulphur dioxide

Option 4: Chlorine

Question : Global warming is mainly due to the accumulation of Which of the following?

Option 1: Oxides of Nitrogen

Option 2: Oxides of Sulphur

Option 3: Carbon Dioxide

Option 4: Carbon monoxide

Question : Which of the following is used to chemically test starch?

Option 1: Chlorine solution

Option 2: lodine solution

Option 3: Sulphur solution

Option 4: Bromine solution