Chemistry
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a year ago
New answer posted
a year agoContributor-Level 10
This is a assertion and reason answer type question as classified in NCERT Exemplar
(i) Statements A and R both are correct and R is the correct explanation of A. Since, metals like Pd and Pt adsorbs a large volume of hydrogen, hence, these are used as a storage media for it.
New question posted
a year agoNew answer posted
a year agoContributor-Level 10
This is a assertion and reason answer type question as classified in NCERT Exemplar
(i) Statements A and R both are correct and R is the correct explanation of A.
MCl2+Na2CO3→ MCO3+2NaCl
MSO4+Na2CO3→MCO3+Na2SO4
New answer posted
a year agoContributor-Level 10
1. Acetylation refers to the process of introducing an acetyl group (resulting in an acetoxy group) into a compound, namely the substitution of an acetyl group for an active hydrogen atom. A reaction involving the replacement of the hydrogen atom of a hydroxyl group with an acetyl group (CH3CO) yields a specific ester, the acetate. Acetic anhydride is commonly used as an acetylating agent reacting with free hydroxyl groups., this reaction is usually carried out in the presence of base like pyridine.
2. Aldeydes having no α-H undergo the disproportion reaction in the presence of Strong alkali, it is a chemical reacti
New answer posted
a year agoContributor-Level 10
This is a matching answer type question as classified in NCERT Exemplar
(i) → (b); (ii) → (c); (iii) → (a)
New answer posted
a year agoContributor-Level 10
This is a matching answer type question as classified in NCERT Exemplar
(i)→ (e); (ii)→ (d); (iii)→ (b); (iv)→ (a); (v)→ (c)
New answer posted
a year agoContributor-Level 10
This is a matching answer type question as classified in NCERT Exemplar
(i)→ (d); (ii)→ (b); (iii)→ (c); (iv)→ (a)
New answer posted
a year agoContributor-Level 10
This is a matching answer type question as classified in NCERT Exemplar
(i) → (j); (ii) → (h); (iii) → (f) : (iv) → (a); (v) → (b); (vi) → (e)
New answer posted
a year agoContributor-Level 10
1. When propanone reacts with NaBH4 it will form propan-2-ol.This alcohol is dehydrated to form propene.
2. When benzoic acid is treated with SOCl2 it chlorinates the acid. After controlled hydrogenation it forms benzaldehyde
3. When ethanol is treated with Cu at 573 k, it will oxidize to ethanal. When ethanal is treated with Dil.NaOH it will form 3-Hydroxy butanal
4. After frieadal craft acylation of benzene it will convert into acyl benzene. And further treating with nitrating mixture it forms m-nitroaceto phenone .
5. When benzaldehyde is oxidized with dichromate and treated with calcium carbonate it forms calcium salt. And after dry di
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