Food cans are coated with tin and not zinc because:
Anonymous Quiz
10%
Zinc is more expensive than tin.
26%
Zinc has a higher melting point than tin.
58%
Zinc is more reactive than tin.
7%
Zinc is less reactive than tin.
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A metal 'M' does not react with cold water but reacts with steam to form its oxide and hydrogen gas. This metal could be:
Anonymous Quiz
17%
Sodium (Na)
26%
Calcium (Ca)
42%
Iron (Fe)
15%
Copper (Cu)
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Which of the following conditions are essential for the rusting of iron?
Anonymous Quiz
7%
Presence of only oxygen
32%
Presence of only water/moisture
57%
Presence of both oxygen and water
4%
Presence of oxygen and nitrogen
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Which of the following is a non-metal that exists as a liquid at room temperature?
Anonymous Quiz
40%
Mercury
49%
Bromine
7%
Chlorine
3%
Iodine
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A student adds an iron nail to a blue-coloured copper sulphate solution. After some time, the student would observe that:
Anonymous Quiz
8%
The solution remains blue and the nail is unchanged.
74%
The solution turns green and a brown layer deposits on the nail.
14%
The solution turns colourless and the nail dissolves.
5%
The solution turns red and the nail turns black.
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An element 'X' is a solid at room temperature, very soft, and can be easily cut with a knife. It reacts vigorously with water. 'X' is most likely:
Anonymous Quiz
13%
Magnesium
78%
Sodium
6%
Aluminium
3%
Iron
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In the electrolytic refining of copper, the impure copper is used as the:
Anonymous Quiz
42%
Anode
35%
Cathode
19%
Electrolyte
4%
Insulator
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Ionic compounds are formed by the:
Anonymous Quiz
24%
Sharing of electrons between two metal atoms
16%
Sharing of electrons between two non-metal atoms
53%
Transfer of electrons from a metal to a non-metal
7%
Transfer of electrons from a non-metal to a metal
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Galvanisation is a method of protecting iron from rusting by coating it with a thin layer of:
Anonymous Quiz
10%
Tin
67%
Zinc
13%
Copper
10%
Aluminium
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Why do ionic compounds conduct electricity in their molten state but not in their solid state?
Anonymous Quiz
9%
Ions are not present in the solid state.
41%
Electrons are free to move in the molten state.
47%
Ions are held in fixed positions in the solid state but can move in the molten state.
4%
The solid state is non-conductive by nature.
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An element has an electronic configuration of 2, 8, 7. This element is a:
Anonymous Quiz
19%
Metal and forms a positive ion.
63%
Non-metal and forms a negative ion.
9%
Metalloid and is chemically inert.
9%
Metal and forms a negative ion.
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✨ Quote of the Day
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Success is the sum of small efforts repeated day in and day out! 💪
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✅ Today's quiz on Metals and Non-metals is complete! Well done! 🎉
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➡️ Tomorrow's Topic
Carbon and its Compounds
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Carbon and its Compounds
📍 Channel: @class_10_science_notes
See you tomorrow! 👋
NEXT QUIZ IN @Class_10_notes in which quiz is going to start in 1 minute.
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