Question

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Answer 1

Solution :

Naughty Element : Hydrogen

Strongest electronegative : Fluorine

German Silver is composed of : Copper , Zinc and Nickel

Ore that contains both iron and copper : Chalcopyrites .

Additional information :

Hydrogen has only one electron . So it can both :

• Accept an electron to complete it's octet .

• Donate it's electron .

It can be placed in the metals as well as the halogens group in the periodic table .

Because of all these properties or is known as a naughty element.

Fluorine having an atomic number of 9 and being the lightest halogen .

Chalcopyrites, CuFeS2 consists of both iron and copper .

German silver is an alloy of Copper , Zinc and nickel .

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Answer 2

Answer:

Required Answer :-

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Naughty Element :- Hydrogen

Explanation :-

It is because Hydrogen consist of one electron. The name naughty because it may give electron or take.

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Strongest electromagnetic :- Flourine

Explanation :-

It is the strongest electromagnetic because it has the most electronegativity of 3.98.

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German silver is composed of :- Cu + Zn + Ni

Explanation :-

Here, the Cu stands for Copper, Zn stands for Zinc and Ni stands for Nickel.

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Ore that contains iron and copper :- Chalcopyrite.

Explanation :-

Chalcopyrite is an ore which consists of Iron and Copper. They are also present in CuFeS2.

Correct Matching :-

$\bf \: 1 \hookrightarrow \: c$

$\bf \: 2 \hookrightarrow \: d$

$\bf \: 3 \hookrightarrow \: b$

$\bf \: 4 \hookrightarrow \: a$