Std 10 Chemistry Chapter 1 Periodic table and Electronic Configurations
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Total Score - 10
Ushakumary. S , Govt HSS Karunagappally , Kollam
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1. Which is the block of group 8 elements? *
1 point
2. What s the oxidation number of Fe in FeCl₃ ? *
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3. Which is the block of Lanthanoids? *
1 point
4. Which of the following element has only 's'subshell? *
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5. How many electrons are there in 'd' subshell? *
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6. The outermost subshell electronic configuration of an element is 3s²3p⁵ . Which is its block? *
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7. The subshell electronic configuration of an element is [Ar] 3d³4s² . What is its group number? *
1 point
8. The subshell electronic configuration of an element is 1s² 2s² 2p⁶ 3s². Which is the subshell electronic configuration in short form? *
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9. Which is the block of elements form coloured compounds? *
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10. Representative elements include *
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