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NEET UG CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
1
Easy
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Analyzing
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Be and Al exhibit diagonal relationship. Which of the following statement about them is/are not true?
I. Both react with HCl to liberate
II.They are made passive by
III.Their carbides given acetylene on treatment with water
IV.Their oxides are amphoteric
I. Both react with HCl to liberate
II.They are made passive by
III.Their carbides given acetylene on treatment with water
IV.Their oxides are amphoteric
View answer and explanation
Correct option: D
(iii) only
Option D ((iii) only) is correct because Be and Al carbides produce methane, not acetylene, upon hydrolysis.
More Questions from CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
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The elements with zero electron affinity are
S-I: paramagnetic.
S-II: All the orbitals present in ion are doubly occupied. Which of the following is the most electropositive element? The law of Octaves is not applicable to: Assertion (A): Mendeleev's arranged elements in horizontal rows and vertical columns.
Reason (R): Mendeleev's ignored the order of atomic weight thinking that the atomic measurements might be incorrect. Which of the following electronic configuration does not belong to same block as others?
S-II: All the orbitals present in ion are doubly occupied. Which of the following is the most electropositive element? The law of Octaves is not applicable to: Assertion (A): Mendeleev's arranged elements in horizontal rows and vertical columns.
Reason (R): Mendeleev's ignored the order of atomic weight thinking that the atomic measurements might be incorrect. Which of the following electronic configuration does not belong to same block as others?