Which of the following metals reacts with neither cold nor hot water, but reacts with steam?
Anonymous Quiz
12%
Sodium
16%
Calcium
37%
Magnesium
35%
Iron
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The most abundant metal in the earth's crust is:
Anonymous Quiz
41%
Iron
37%
Aluminium
15%
Calcium
8%
Sodium
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The process of heating a carbonate ore strongly in a limited supply of air to convert it into a metal oxide is called:
Anonymous Quiz
24%
Roasting
61%
Calcination
8%
Smelting
7%
Reduction
Why do ionic compounds have high melting and boiling points?
Anonymous Quiz
16%
They are formed by sharing of electrons.
10%
They contain molecules instead of ions.
72%
A considerable amount of energy is required to break the strong inter-ionic attraction.
2%
They are solids at room temperature.
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An alloy is a:
Anonymous Quiz
13%
Compound
57%
Homogeneous mixture
26%
Heterogeneous mixture
4%
Element
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The reaction of iron(III) oxide (Fe₂O₃) with aluminium is used to join railway tracks. This highly exothermic reaction is known as:
Anonymous Quiz
13%
Galvanisation
10%
Combustion
74%
The Thermite reaction
3%
Hydrogenation
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Galvanisation is a method of protecting iron from rusting by coating it with a thin layer of:
Anonymous Quiz
14%
Gallium
22%
Aluminium
59%
Zinc
5%
Silver
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The electronic configurations of three elements X, Y and Z are X – 2, 8; Y – 2, 8, 7; and Z – 2, 8, 2. Which of the following is correct?
Anonymous Quiz
12%
X is a metal
13%
Y is a metal
15%
Z is a non-metal
60%
Y is a non-metal and Z is a metal
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Which statement best describes the bonding in a nitrogen molecule (N₂)?
Anonymous Quiz
29%
Two nitrogen atoms share one pair of electrons.
22%
Two nitrogen atoms share two pairs of electrons.
36%
Two nitrogen atoms share three pairs of electrons.
13%
One nitrogen atom transfers three electrons to the other.
👏5❤3
Which of the following pairs will give displacement reactions?
Anonymous Quiz
21%
NaCl solution and copper metal
23%
MgCl₂ solution and aluminium metal
21%
FeSO₄ solution and silver metal
36%
AgNO₃ solution and copper metal
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Which of the following non-metals is lustrous?
Anonymous Quiz
21%
Sulphur
9%
Oxygen
8%
Nitrogen
62%
Iodine
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What is the composition of the alloy solder?
Anonymous Quiz
52%
Lead and Tin
23%
Copper and Zinc
20%
Copper and Tin
5%
Iron and Carbon
An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be:
Anonymous Quiz
51%
Calcium
24%
Carbon
12%
Silicon
13%
Iron
❤3
✨ Quote of the Day
Success is the sum of small efforts repeated day in and day out! 💪
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 (Science) is complete! Well done! 🎉
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The Making of a Global World (SST)
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See you tomorrow! 👋
NEXT QUIZ IN @Class_10_social_Science_notes in which quiz is going to start in 1 minute.
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