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JEE CHEMISTRY MCQ: P-BLOCK ELEMENTS
1
Medium
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Understanding
+4 | -1
Assertion (A): is not possible due to
Reason (R): incapability of 'N' to show pentavalency Max. covalency of 'N' can be 4.
Reason (R): incapability of 'N' to show pentavalency Max. covalency of 'N' can be 4.
View answer and explanation
Correct option: D
Both (A) and (R) are false
Option D is correct because N2O5 is a known compound, and nitrogen can exhibit a covalency of more than 4 using d-orbitals, though it is less common.
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The gas used for inflating the tyres of aeroplanes is:
Which of the following is correct stability order of oxides of group elements is:
Assertion: Ozone is a powerful oxidising agent in comparison to .
Reason: Ozone is diamagnetic but is paramagnetic. Which of the following is kept in water? ion and are isoelectronic but in contrast to is chemically inert because of: Consider the following statements
(i) Reaction shows reducing character of sulphur dioxide
(ii) contains four , two and one bond
(iii) gas can be dried effectively by using conc. .
(iv) One of the major use of is in the manufacture of fertilizers.
Which of the following is the correct code for the statements above?
Reason: Ozone is diamagnetic but is paramagnetic. Which of the following is kept in water? ion and are isoelectronic but in contrast to is chemically inert because of: Consider the following statements
(i) Reaction shows reducing character of sulphur dioxide
(ii) contains four , two and one bond
(iii) gas can be dried effectively by using conc. .
(iv) One of the major use of is in the manufacture of fertilizers.
Which of the following is the correct code for the statements above?
