Class 10th - 33 Most Repeated Previous year questions🔥| Complete Science Revision| Prashant Kirad

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32. (c) Na2CO3.10H2O 33. (a) thermal decomposition of lead nitrate which produces brown fumes of nitrogen dioxide.

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32. (C) Na2co3.10H2O 33. (A) thermal decomposition of lead nitrate which produces brown fumes of nitrogen dioxide

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32- (c)Na2CO3.10H2O is washing soda. Also used to remove premanent hardness of water. 33-(a)thermal decomposition of lead nitrate which produces brown fumes of nitrogen dioxide. Pb(NO3)2 →heat→ PbO(yellow solid)+ O2 + NO2(Nitrogen dioxide acidic with brown fumes) 1:34:40

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1:34:32 Na2HCO3 1:34:47 (a) thermal decomposition of lead nitrate, which produces brown fumes of nitrogen dioxide

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32.(C) Na2Co3.10H2O 33. (A)Thermal decomposition of Lead Nitrate which produces Nitrogen dioxide gas

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32- option c- na2co3.10h2o 33-option b- thermal decomposition of lead nitrate to form nitrogen dioxide and lead oxide

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32. Option C = Na2CO3.10H2O 33. Option A = Thermal decomposition of lead nitrate which produces brown fumes of NO2 gas

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32-(c)Na2CO3.10H20 sodium carbonate deca hydrate 33-(a)thermal decomposition of lead nitrate which produces brown fumes of nitrogen dioxide 2Pb(NO3)2=2PbO + 4NO2 + O2

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32) c)Na2Co3.10h2O 33) a)thermal decomposition of lead nitrate which produces brown fumes of nitrogen dioxide

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32. C. Na2CO3•10H2O 33. A.2 Pb(NO3)2 →∆→2PbO + 4NO2(brown ring gas) + O2 It is a thermal decomposition reaction.

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32(c) Na2CO3•10H20 33(a) thermal decomposition of lead nitrate which produces brown fumes of nitrogen dioxide🥰🥰

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Q32 Na2CO3*10H2o Which is used to remove parmanent hardness of water 🌊 Q33 (a) decomposition of lead nitrate which produce brown fumes of nitrogen dioxide ❤❤🎉❤❤

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32) c. Na2CO3. 10H2O 33) a. thermal decomposition of lead nitrate which produces brown fumes of nitrogen dioxide. 👍👍👍👍👍

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32(c) Na2CO3•10H20 33(a) thermal decomposition of lead nitrate which produces brown fumes of nitrogen dioxide

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Sir, Q32) Option (C) - Na2CO3.10H20 Q33) Option (A) - thermal decomposition of lead nitrate which produces brown fumes of nitrogen dioxide.

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Q32 (c) Na2Co3.10H20 Q33 (a) thermal decomposition of lead nitrate which produces brown fumes of nitrogen dioxide.

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32- c Na2CO3.10H2O 33-a thermal decomposition of lead nitrate which produces brown fumes of nitrogen dioxide.

[@shreyashrivastava5633]

32) Name of washing soda - c) Na2CO3•10 H2O 33) a) thermal decomposition of lead nitrate which produces brown fumes of nitrogen dioxide.

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32. (C) Na2CO3 . 10H2O 33. (A) thermal decomposition of lead nitrate which produces brown fumes of nitrogen dioxide. Thank you bhaiya...aaj mein jaha hu vaha aap ke vajese hu...mein bohot piche hogai thi lekin aap le vagese mein bapis aage aa rahi hu !!!🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻

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Washing soda is a chemical compound with the chemical formula Na2CO3.10H2O. It is also known as sodium carbonate Washing soda is a whitish, odorless powder that is alkaline with a pH level of 11. It is one of the few metal carbonates that are soluble in water. Its unique chemical composition makes it effective at degreasing and deep cleaning clothes. However, because of its high pH level, washing soda is caustic and should never be touched with bare skin.

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Q 32- (c) Na²CO³. 10 H²0 Q 33- (a) thermal decomposition of lead nitrate which produces brown fumes of nitrogen dioxide

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32 (c) na2CO3.10H2O 33.(a) thermal decomposition of lead nitrate which produces brown fumes of nitrogen dioxide

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Q. 32 -option (C) Na2Co3. 10H2O Q. 33-option (a) 💗💗💗

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32) c) Na2co3.10H20 . 33) a) thermal decomposition of lead nitrate which produces brown fumes of nitrogen dioxide 🤫🤫🤫

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32-Na2CO3. 10H2O 33-thermal decomposition of lead nitrate which produces brown fumes of nitrogen dioxide

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6:03 on heating when ferrous sulphate is not decoposed as shown in the reaction it turns white it only turns brown while undergoing thermal decomposition reaction i.e. at strong heating

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32:-c) Na2C03.10H20 33:-a)thermal decomposition of lead nitrate which produces brown fumes of nitrogen dioxide

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thermal decomposition of lead nitrate which produces brown fumes of nitrogen dioxide. Explanation: In the provided experimental setup, the emission of brown fumes is caused by the thermal breakdown of lead nitrate, which creates brown fumes of nitrogen dioxide.

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Firstly, Thank you so much for the video Prashant BHAIYA 32) c) Na2CO3.10H20 (washing soda) 33) a) thermal decomposition of lead nitrate which produces brown fumes of nitrogen dioxide

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32. (C) 33. (A)

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Homework 32:- Na2CO3.10H2O 33:- The emission of brown fumes in the given experimental set-up is due to thermal decomposition of lead nitrate which produces brown fumes of nitrogen dioxide.

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32.(c)Na2Co3.Q 10H20. 33.(b)thermal decomposition of lead nitrate which produces brown fumes of nitrogen dioxide.❤

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32. NaHCo3 33..a) thermal decomposition of lead nitrate which produces brown fumes of nitrogen dioxide

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32. (c) Na2CO3.10H2O 33. (a) thermal decomposition of lead nitrate which produces brown fumes of nitrogen dioxide. Thanks Bhaiya!

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Washing soda formula:- Na2CO3.10H20 Brown fumes is always of nitrogen dioxide.

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32 c Na2co3.10h20 33 a thermal decomposition

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Na2CO3. 10H2O Thermal decomposition of lead nitrate which produces brown funes of nitrogen dioxide.

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32- Na2CO3.10H2O 33- Option (A)

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