What is the oxidation no. of underlined C in $ HCHO, CH_3CHO, CH_3COOCH_3 $ or formalehyde acetaldehyde, acetone respectively ?
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Chemistry MCQs for NEET — Practice Questions with Answers
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What is the oxidation no. of underlined C in $CH_3COOCH_3 $ respectively ?
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In which of the following compound, oxidation no of all C atoms are same ?
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What are the values of b, d and f in the balanced state of the following reaction? Reaction : $aMnO_4^ – +bAs_2 O_3^ + cH_2O \rightarrow dMn^{2+} + eASO_4 ^{ 3–} + fH ^+(P ^ H \lt 7) $
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In the balanced state of reaction, $aBr_2 + bOH ^– + CH_2O \rightarrow dBrO_4 ^ – + eHBr $ (basic medium), if c=9, then what will be the change in oxidation no. (change in no. of electrons).
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What will be the chage in the oxidation no. (change in no. of electrons) inbalanced eqation given below ? Reaction : $ 2S + bHNO_3 \rightarrow CH_2SO_4 + dNO $ (acidic medium)
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What will be the change in the oxidation no. (change in no. of electrons), if no. of $e^– = 10 in balanced eqation given below ? Reaction : aP_4 + bNO_3^ – + cH^+ \rightarrow dPO_4 3– + eNO_2 + fH_2O $ (acidic medium)
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What is the ratio of value of band c in the balanced equation given below ? Reaction: $ aP_4 + bNO_3 ^ – + CH^+ \rightarrow dPO_4 ^{3–} + eNO_2 + fH_2O (acidic medium)$
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Explanation
In the given reaction, we need to balance the chemical equation to find the ratio of the coefficients of $NO_3^-$ (b) and $H^+$ (c). After balancing the equation, it is found that the coefficients ratio b:c is 10:3. Hence, the correct answer is 10:3.
In the reaction, $ R – CHO + 2cuO \rightarrow R – COOH + Cu_2O $ which substance is oxidising agent? And which substance is oxidizes ? (mention it respectively)
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Explanation
In the given reaction, $R–CHO$ (an aldehyde) is oxidized to $R–COOH$ (a carboxylic acid), and $CuO$ (cupric oxide) is reduced to $Cu_2O$ (cuprous oxide). The oxidizing agent is the substance that gets reduced, which is $CuO$, and the substance that oxidizes is $R–CHO$. Thus, $CuO$ is the oxidizing agent, and $R–CHO$ is the substance being oxidized.
In which of the following reaction, $ H_2O_2 $ acts as oxidizing agent ?
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