MCQ
Helium was discovered by
- ACrooks
- BRutherford
- ✓Frankland and Lockyer
- DDorn
✓
Answer
Correct option: C.
Frankland and Lockyer
c
(c)Helium (In Greek Helios = Sun)
(c)Helium (In Greek Helios = Sun)
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The $IUPAC$ name of given is :
→Carbyl-amine reaction is given by
Increasing order of electron affinity is
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| (b) $\left[ Cr \left( NH _3\right)_6\right]\left[ Co ( CN )_6\right]$ | (ii) coordination isomerism |
| (c) $\left[ Co \left( NH _3\right)_5\left( SO _4\right)\right] Br$ | (iii) linkage isomerism |
Match List $- I$ with List$-II.$
→| List $- I$ | List $- II$ |
| $(a)$ $\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}$ | $(i)$ $5.92 \,\mathrm{BM}$ |
| $(b)$ $\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{3+}$ | $(ii)$ $0 \,\mathrm{BM}$ |
| $(c)$ $\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{4-}$ | $(iii)$ $4.90\, \mathrm{BM}$ |
| $(d)$ $\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{2+}$ | $(iv)$ $1.73\, \mathrm{BM}$ |
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Given : $K_P = 8 \times 10^{12}\, atm$ at $500\, K$ use $R = 0.08\, L\, atm\, mol^{-1}\, K^{-1}$
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The pair of species that has the same bond order in the following is
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