Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-2>Q 5

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Which of the following have higher $Z_{eff}$ than Fluorine.

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Important Questions on Classification of Elements and Periodicity in Properties

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Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-2>Q 6

Which of the following can show

+ 7

oxidation state?

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Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-2>Q 7

Which of following does not exist:

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Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-2>Q 8

When the following five anions are arranged in the order of decreasing ionic radius, the correct sequence is:

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Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-2>Q 9

In which of the following compound manganese shows maximum radius?

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Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-2>Q 10

Which of the following is the correct order of ionisation enthalpy?

(1) ${Be}^{+} > Be$

(2) $Be > {Be}^{+}$

(3) $C > Be$

(4) $B > Be$

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Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-2>Q 11

Fluorine has the highest electronegativity among the

n s^{2} n p^{5}

group on the Pauling's Scale, but, the electron affinity of fluorine is less than that of chlorine because

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Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-2>Q 12

Which one of the following arrangements represents the correct order of electron gain enthalpy (with negative sign) of the given atomic species?

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Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-2>Q 13

Which of the following statement is incorrect?