Answer:
(a) > (d) > (c) > (b)
Explanation:
Acidic character is based upon inductive effect of the functional group that are attached to parent chain.
1. Nitro is a -I group which makes phenol acidic due to increased resonance, 2. bromine is a -I group but it is weaker than nitro group
3. phenol is more acidic than cyclohexanol due to resonance stabilization of resonance and among halogen F>Cl>Br>I is the order of acidity
4. cyclohexanol will be weakest as it is not associated with any -I groups here.
so the order of acidity will be
(a). 4-nitropheno > (d). 4-bromophenol > (c). 2,6-difluorocyclohexanol > (b). cyclohexanol
Answer:
D
Explanation:
A is length
B is Reflection
C Mass
D is Density
A B can be eliminated immediately and you will learn the rest in school
Hope it helps!! :)
Hydronium ions are H30+, and pH = -log10[H+]
<span>As H+ ions in solution exist as H3O+ ions, the lower the pH, the higher the concentration of H30+</span>
You can automatically rule out CH₄ since it has no lone pairs at all around the central atom. Water has 2. Ammonia is the only Lewis structure that contains one lone pair.
Answer: [B]: "It is always the same as mass, regardless of the gravity."
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