Comprehensive collection of questions from General Science asked in recent state service examinations. Each question is verified with official answer keys and step-by-step bilingual solutions.
Which of the following acids does not contain oxygen?
What is the molecular geometry of the sulphur hexafluoride molecule?
Which of the following is used as laughing gas?
Which one of the following is also called 'Stranger Gas'?
Aqua regia used by goldsmiths is prepared by mixing:
An aqueous solution of copper sulphate is acidic because the salt undergoes:
Which of the following is not a gaseous biogeochemical cycle?
pH value indicates:
Bromine is a:
Which of the following compounds is not a Lewis acid?
Match List-I with List-II and select the correct answer using the code given below the lists: List-I List-II (A) Washing Soda 1. Sodium hydroxide (B) Caustic Soda 2. Copper sulphate (C) Blue Vitriol 3. Sodium thiosulphate (D) Hypo 4. Sodium carbonate Code:
Water can dissolve more substances than any other liquid because:
The laughing gas used as an anaesthetic by doctors is:
A tube light is filled with:
Which of the following is a possible pH value for an acidic solution?
Oxygen is absent in:
Blue Vitriol is chemically:
The chemical used to eliminate fungi/algae in water tanks is:
Which gas is mixed with oxygen for breathing by divers in deep sea?
Which of the following gases is used for filling aeroplane tyres?
Helium is preferred over hydrogen in balloons because:
Which of the following remains in a solid state at normal room temperature?
Which acid is regarded as the basic chemical in the chemical industry?
Which of the following is readily soluble in water?
The gases used by deep-sea divers for breathing are: