The one which is a covalent green oil is:

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Look at the following chemical reactions and answer the following question:
(A) \(C_7H_8 \xrightarrow{\text{Conc. HNO}_3, 0^\circ C}
(B) \xrightarrow{Sn/HCl}
(C) \xrightarrow{NaNO_2/H_3O^+}
(D) \xrightarrow{H_2O, Heat} (E)\)
(E) \(CH_3I \xrightarrow{KMnO_4/H^+}
(F) \xrightarrow{H_3O^+}
(G) \xrightarrow{NaOH} (H)\)
Which of the following compounds will form dimer ?

When a mixture of NaCl and \(K _2 Cr _2 O _7\) is gently warmed with conc. \(H _2 SO _4\) ?
(A) Deep red vapours are evolved.
(B) The Vapours when passed through NaOH solution give yellow solution of \(Na _2 CrO _4\).
(C) Chlorine gas is evolved.
(D) Chromyl chloride is formed.
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Which of the following reactions are given by Phenols?
(A) Nitration
(B) Halogenation
(C) Oxidation
(D) Acetylation
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Identify the correct pKa value order:
A. Phenol
B. 4-Methylphenol (p-Cresol)
C. Benzoic acid
D. 4-Methylbenzoic acid
E. 4-Nitrobenzoic acid
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Read the passage carefully and answer the Questions
Carbonyl compounds such as aldehydes, ketones, and carboxylic acids play an important role in the biochemical process of plants and animal kingdom. Many aldehydes and ketones find applications in dye, perfumery and other industries.
The carbonyl carbon atom is \(s p^2\)-hybridized forming three sigma and one pi-bond with oxygen.
C-O bonds are polar bond due to high electronegativity of oxygen than carbon.
Hence the carbonyl carbon behaves as an electrophilic center and oxygen as a nucleophilic centre.
Primary and secondary alcohols yield aldehydes and ketones respectively upon oxidation with variety of oxidixing agents.
The boiling points of aldehydes and ketones differ from hydrocarbons and ethers.
Aldehydes and ketones undergo nucleophilic addition reaction due to presence of electrophilic carbonyl carbon.
Nucleophile and a proton add across the carbon oxygen double bond.
In polar C-O bond in carbonyl compounds, the nature of carbon and oxygen atom is

Choose the statements that are valid for the molecularity of a reaction
(A) Molecularity is equal to the number of reacting species involved in the overall reaction
(B) Decomposition of ammonium nitrite is an example of unimolecular reaction
(C) Reactions with the molecularity three are very rare
(D) Molecularity can only be determined experimentally
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The absolute maximum value of the function \(f(x) = \sin x + \cos x, x \in [0, \pi]\) is:

Match List - I with List - II.

List – I	List – II
(A) Ethanol and Diethyl ether	(I) Lucas reagent
(B) Methanol and Ethanol	(II) Sodium metal
(C) n-Butyl alcohol and tert. Butyl alcohol	(III) Iodoform test
(D) Phenol and Cyclohexanol	(IV) Ferric Chloride

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Identify the practices followed to avoid sexually transmitted infection
A. Avoiding sex with unknown partners/multiple partners
B. Using condom during coitus
C. Periodic Abstinence
D. Insertion of copper-T in the uterus
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Select which step/s out of the following doesn't/don't belong to the process of decomposition.
(A) Fragmentation
(B) Humification
(C) Anabolism
(D) Mineralisation
(E) Leaching
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The water and milk in two vessels are in the ratio 1:1 and 3: 8 respectively. In what ratio, the mixtures in the vessels be mixed to obtain a new mixture containing water and milk in the ratio 4 : 7?

The 'hilum' represents the junction between: