Metals Reaction with Oxygen (Burnt in Air)
Trending Questions
Q. Copper is less reactive than hydrogen. Then how does nitric acid reacts with copper
Q. Difference between electrical conductivity of copper sulphate solution and of copper metal.
Q. Question 3(iii)
Samples of four metals A, B, C and D were taken and added to the following solution one by one. The results obtained have been tabulated as follows:
MetalIron(II)sulphateCooper(II)sulphateZinc sulphateSilver nitrateA.No reactionDisplacementB.DisplacementNo reactionC.No reactionNo reactionNo reactionDisplacementD.No reactionNo reactionNo reactionNo reaction
Use the Table above to answer the following questions about metals A, B, C and D.
(iii) Arrange the metals A, B, C and D in the decreasing order of reactivity.
Samples of four metals A, B, C and D were taken and added to the following solution one by one. The results obtained have been tabulated as follows:
MetalIron(II)sulphateCooper(II)sulphateZinc sulphateSilver nitrateA.No reactionDisplacementB.DisplacementNo reactionC.No reactionNo reactionNo reactionDisplacementD.No reactionNo reactionNo reactionNo reaction
Use the Table above to answer the following questions about metals A, B, C and D.
(iii) Arrange the metals A, B, C and D in the decreasing order of reactivity.
Q. Boojho has learnt that non-metals on beating with a hammer are generally broken into pieces. Which of the following is a non-metal?
- iron nail
- aluminium wire
- piece of coal
- copper plate
Q. Question 3(ii)
Samples of four metals A, B, C and D were taken and added to the following solution one by one. The results obtained have been tabulated as follows:
MetalIron(II)sulphateCooper(II)sulphateZinc sulphateSilver nitrateA.No reactionDisplacementB.DisplacementNo reactionC.No reactionNo reactionNo reactionDisplacementD.No reactionNo reactionNo reactionNo reaction
Use the Table above to answer the following questions about metals A, B, C and D.
(ii) What would you observe if B is added to a solution of copper (II) sulphate?
Samples of four metals A, B, C and D were taken and added to the following solution one by one. The results obtained have been tabulated as follows:
MetalIron(II)sulphateCooper(II)sulphateZinc sulphateSilver nitrateA.No reactionDisplacementB.DisplacementNo reactionC.No reactionNo reactionNo reactionDisplacementD.No reactionNo reactionNo reactionNo reaction
Use the Table above to answer the following questions about metals A, B, C and D.
(ii) What would you observe if B is added to a solution of copper (II) sulphate?
Q. Which of the following non-metals is the best conductor of electricity?
- Phosphorus
- Fluorine
- Graphite
- Bromine
Q.
Give one example in each case:
A basic oxide which is soluble in water.
Q. The oxide of which of the following metals can be reduced to metal just by heating:
- Zn
- Hg
- Na
- Al
Q. Choose the correct pair based on the state of the given metals at normal room temperature.
- Gas
- Liquid
- Mercury
- Solid
- Carbon
- Helium
Q.
Metal oxides are reduced to metal using reducing agents. The reducing agent during the thermite process is:
Q. When different colours in paint separate on drying and form patches and streaks, the phenomenon is known as flooding of the paint. It can be prevented by adding.
- Stearic acid
- Caustic soda
- Common salt
- Lime
Q. Choose the correct pair based on the state of the given metals at normal room temperature.
- Solid
- Gas
- Liquid
- Mercury
- Helium
- Carbon
Q. [TBQ.VI.3]
What is rust? Give the equation for
formation of rust.
What is rust? Give the equation for
formation of rust.
Q.
What happens when potassium oxide reacts with water?
Q. Which one of the following metal oxides shows both acidic and basic characters ?
