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Metals are good_____(oxidizing agent/reducing agents) because they are electron______(acceptor/donors).
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Electrovalent compounds have ________(high/low) melting points.
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Higher the pH value of a solution, the more______(acidic/alkaline) it is.
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_____(AgCl/PbCl2), a white precipitate is soluble in excess NH4OH.
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Conversion of ethene to ethane is an example of _______(hydration/hydrogenation).
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An element with the atomic number 19 will most likely combine chemically with the element atomic number is:
17
11
18
18
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The ratio between the number of molecules in 2g of hydrogen and 32g of oxygen is:
[Given that H=1, O=16]
1:2
1:0.01
1:1
1:1
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The two main metals in Bronze are:
Copper and zinc
Copper and lead
Copper and nickel
Copper and nickel
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The particles present in strong electrolytes are:
Only molecules
Mainly ions
Ions and molecules
Ions and molecules
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The aim of the Fountain Experiment is to prove that:
HCl turns blue litmus red
HCl is denser than air
HCl is highly soluble in water
HCl is highly soluble in water
B.
HCl is denser than air
C.
HCl is highly soluble in water