Question
Arrange $S,\,O$ and $Se$ in ascending order of electron affinity
✓
Answer
a
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
For the given compounds, the correct order of increasing $\mathrm{pK}_{\mathrm{a}}$ value:
→The magnetic moments of complexes given below are in the order
→$(I)\,[Ni(CO)_4]$ $(II)\, [Mn(CN)_6]^{4-}$ $(III)\, [Cr(NH_3)_6]^{3+}$ $(IV) \,[CoF_6]^{3 -}$
Nucleons are equal to :
Assertion : Ozone is an allotrope of oxygen.
Reason : Oxygen is bluish coloured liquid and in singlet state it is para-magentic.
A salt $MX$ has $K_{sp} = 4 × 10^{-10}$ . What value of $K_{sp}$ must another salt $MX_3$ have if the molar solubility of the two salts is to be identical
→Three organic compounds $A , B$ and $C$ were allowed to run in thin layer chromatography using hexane and gave the following result (see figure). The $R_f$ value of the most polar compound is $............\,\times 10^{-2}$
→Which of the following is true for zero order reaction
Bohr’s atomic theory gave the idea of :
Given
→$C_{(graphite)} +O_2(g) \rightarrow CO_2(g)\,;$
$\Delta _rH^o=-395.5 \, kJ\,mol^{-1}$
$H_2 (g) + \frac{1}{2} O_2 (g) \rightarrow H_2O(l)\,;$ $\Delta _rH^o =-285.8\, kJ\, mol^{-1}$
$CO_2(g) + 2H_2O(l) \rightarrow CH_4(g) + 2O_2(g)\,;$
$\Delta _rH^o = + 890.3\, kJ\, mol^{-1}$
Based on the above thermochemical equations, the value of, $\Delta _rH^o $ at $298\, K$ for the reaction
$C_{(graphite)} + 2H_2(g) \rightarrow CH_4(g) $ will be for $\Delta_{r} H^{\circ}$ ........... $kJ \,mol^{-1}$
Which is not true about metal carbonyls?