alleryStart learning →The property of metals by which they can be hammered into thin sheets is called:
- brittleness
- malleability
- volatility
- ductility
Show answer and solution
Correct answer: B. malleability
Malleability: metals can be beaten into thin sheets.
Indian Navy 10+2 B.Tech Cadet Metals and Non-metals — practice questions
Explore 4 free Metals and Non-metals questions in Indian Navy 10+2 B.Tech Cadet Science. Open each question or exercise to read its content, reference answers and available explanation.
Practise Metals and Non-metals with Quill →Metals and Non-metals questions and exercises with answers
Showing questions 1–4 of 4.
The property of metals by which they can be hammered into thin sheets is called:Read the answer and worked solution →Iron nail dipped in copper sulfate solution shows colour change because:Read the answer and worked solution →In the formation of NaCl from Na and Cl, sodium:Read the answer and worked solution →Heating a sulfide ore strongly in excess air converts it to an oxide. This step is called:Read the answer and worked solution →
Worked practice questions
Iron nail dipped in copper sulfate solution shows colour change because:
- No reaction occurs
- Fe is more reactive than Cu
- Cu corrodes iron
- Cu is more reactive than Fe
Show answer and solution
Correct answer: B. Fe is more reactive than Cu
Iron is above copper in the reactivity series, so it displaces copper from CuSO₄: Fe + CuSO₄ → FeSO₄ + Cu.
Solution turns from blue to green; nail gets a brown coating.
In the formation of NaCl from Na and Cl, sodium:
- gains an electron
- shares an electron
- loses an electron
- gains two electrons
Show answer and solution
Correct answer: C. loses an electron
Na has 1 outer electron.
It loses it to become Na⁺.
Chlorine accepts the electron and becomes Cl⁻.
The opposite charges attract.
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