CUET Preparation Today
Which of the following features of metal is NOT Correct? |
Metals combine with oxygen to form basic oxides. All metals have same reactions with water as they have with dilute acid. Metals can form positive ions by losing electrons to non-metals Metals are lustrous, malleable, ductile and are good conductors of heat and electricity. |
All metals have same reactions with water as they have with dilute acid. |
The correct answer is Option (2) → All metals have same reactions with water as they have with dilute acid. Metals generally combine with oxygen to form basic oxides, so the first statement is correct. Metals lose electrons to form positive ions when reacting with non-metals, which makes the third statement correct. Metals are usually lustrous, malleable, ductile, and good conductors of heat and electricity, so the fourth statement is also correct. However, metals do not react with water and dilute acids in the same way. Some metals react vigorously with water, some react slowly, and some do not react at all, while their reactions with dilute acids can be different. Therefore, the second statement is not correct.
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