MCQOPTIONS
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MCQOPTIONS
| 1. |
Which of the following order is wrong [CBSE 2002] |
| A. | \[N{{H}_{3}}<P{{H}_{3}}<As{{H}_{3}}\]-acidic nature |
| B. | \[L{{i}^{+}}<N{{a}^{+}}<{{K}^{+}}<C{{s}^{+}}\]-ionic radius |
| C. | \[A{{l}_{2}}{{O}_{3}}<MgO<N{{a}_{2}}O<{{K}_{2}}O\]-basic |
| D. | \[Li<Be<B<C\]-1st ionisation potential |
| Answer» E. | |