Q. Among the following, the best and the least $H ^{\ominus}$ ion donor, respectively, are:
Aldehydes Ketones and Carboxylic Acids
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Solution:
Correct answer is (a) Correct answer is (c)
![Solution Image](https://cdn.tardigrade.in/img/question/chemistry/evkbipsda5ax-s.png)
Questions from Aldehydes Ketones and Carboxylic Acids
1. Toluene by Etard's reaction gives
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2. The reduction of benzoyl chloride with $H_2/Pd\, BaSO_4$ gives
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3. Acetaldehyde can be prepared by
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5. Find out the products of the reaction.
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4. The density of 2 M aqueous solution of NaOH is 1.28 g/cm$^3$. The molality of the solution is
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6. In water saturated air the mole fraction of water vapour is $0.02$. If the total pressure of the saturated air is $1.2\, atm$, the partial pressure of dry air is :
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7. A first order reaction has a rate constant of $2.303\times 10^{-3}$ s$^{-1}$. The time required for 40g of this reactant to reduce to 10 g will be-
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8. One atom of an element weighs $ 1.8\times 10^{-22}g$ . Its atomic mass is
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10. Given below are half cell reactions:
$ MnO _{4}^{-}+8 H ^{+}+5 e ^{-} \rightarrow Mn ^{2+}+4 H _{2} O $
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$\frac{1}{2} O _{2}+2 H ^{+}+2 e ^{-} \rightarrow H _{2} O ,$
$ E _{ O _{2} / H _{2} O }^{\circ}=+1.223 \,V$
Will the permanganate ion, $MnO _{4}^{-}$liberate $O _{2}$ from water in the presence of an acid ?
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