In which group of modern periodic table is halogen placed?
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Chemistry GK · all questionsNon Metal and Its Compounds
Non Metal and Its Compounds
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Water softner is
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Consider the following statements
1. Dry ice is the solid form of CO2.
2. Dry ice is used primarily as a cooling agent.
3. Water ice is colder than dry ice.
Which of the statement(s) given above is/are correct?
1. Dry ice is the solid form of CO2.
2. Dry ice is used primarily as a cooling agent.
3. Water ice is colder than dry ice.
Which of the statement(s) given above is/are correct?
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Name the reddish brown gas emitted when vigorously heating lead nitrate.
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The ionization potential of noble gas is-
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Diamonds can be synthesized by subjecting pure carbon to:
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Which gas is known as 'noble gas'?
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How is carbon black obtained?
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Match List I with List II.
| List-I | List-II |
| a. Hydrofluoric acid | 1. Etching of glass |
| b. I2 dissolved in alcohol | 2. Antiseptic |
| c. Chlorine | 3. Disinfectant |
| d. Polyvinyl chloride | 4. Plastic |
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Following statements are made in connection with Carbon dioxide (CO2).
1. CO2 is a poisonous gas.
2. CO2 is an acidic oxide.
3. CO2 turns lime water milky.
Which of the statement(s) given above is/are correct?
1. CO2 is a poisonous gas.
2. CO2 is an acidic oxide.
3. CO2 turns lime water milky.
Which of the statement(s) given above is/are correct?
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Phosphorus is kept in water so that . . . . . . . .
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Phosphorus is kept in water because
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Which one of the following is not true for diamond?
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Consider the following statements Laughing gas (N2O)
1. finds use as a propellant for whipped ice-cream.
2. used as an anaesthetic.
3. used for the preparation of N3H.
4. used as fuel for rockets.
Which of the above is/are correct?
1. finds use as a propellant for whipped ice-cream.
2. used as an anaesthetic.
3. used for the preparation of N3H.
4. used as fuel for rockets.
Which of the above is/are correct?
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Atomicity of phosphorus is-
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Yellow colour of usual nitric acid is due to the presence of which one of the following?
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Which of the following is not an allotrope of carbon?
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Chlorine, fluorine and iodine are examples of known.
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Electric bulbs typically contain chemically inert gases such as . . . . . . . .
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Which elements have 7 valence electrons in their outermost shells?
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