Assertion : Phenol forms 2, 4, 6 - tribromophenol on treatment with `Br_2` in carbon disulphide at 273k. Reason : Bromine polarises in carbon disulphide.

Assertion : The molecularity of the reaction H_2 + Br_2 rarr 2HBr is 2. Reason : Order of the reaction 3/2.

These questions consist of two statements each,printed as Assertion and Reason.While asnwering these questions you are required to chose any one of the following four responses. If both Assertion and Reason are true and Reason in correct explanation of Assertion. If both assertion and Reason are true but reason is not correct explanation of Assertion. If Assertion is true but Reason is false. If both Assertion and Reason are false. Assertion:When CO_2 concentration of atmosphere increases,stomata close partially. Reason: CO_2 combines with water to form carbonic acid which lowers pH value and stomata close.

Nitration of phenol in the presence of conc. H_2 SO_4 forms

The questions given below consist of an assertion and the reason. Use the following key to choose the appropriate answer. (a) Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion. (b) The Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.(c) Assertion is is CORRECT but reason is INCORRECT. (d) If assertion is INCORRECT but reason is CORRECT. (e)If both assertion and reason are INCORRECT. Assertion: ZnS is a tetrahedral arrangement. Reason:In ZnS, S^(2-) ions form cubic close packed structure.

Assertion : Actinoids form relatively less stable complexes as compared to lanthanoids. Reason : Actinoids can utilise their 5f orbitals along with 6d orbitals in bonding but lanthanoids do not use their 4f orbital for bonding.

In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices. (a) Both assertion and reason are correct statements, and reason is the correct explanation of the assertion. (b) Both assertion and reason are correct statements, but reason is not the correct explanation of the assertion. (c) Assertion is correct, but reason is wrong statement. (d) Assertion is wrong but reason is correct statement. (e) Both assertion and reason are wrong statements. Assertion : N_2 is less reactive than P_4 . Reason : Nitrogen has more electron gain enthalpy than phosphorus.

These questions consist of two statements each,printed as Assertion and Reason.While asnwering these questions you are required to chose any one of the following four responses. If both Assertion and Reason are true and Reason in correct explanation of Assertion. If both assertion and Reason are true but reason is not correct explanation of Assertion. If Assertion is true but Reason is false. If both Assertion and Reason are false. Assertion:There are 4 carbon atoms in an oxaloacetic acid molecule,which jions with an acetyl group during step I Krebs' cirtic acid cycle. Reason:There are 6 carbon atoms in citric acid molecule.

These questions consist of two statements each,printed as Assertion and Reason.While asnwering these questions you are required to chose any one of the following four responses. If both Assertion and Reason are true and Reason in correct explanation of Assertion. If both assertion and Reason are true but reason is not correct explanation of Assertion. If Assertion is true but Reason is false. If both Assertion and Reason are false. Assertion:In C_4 plants end product of C_2 fixation is oxalo-actic acid. Reason:Oxalo-acetic acid is formed in bundle sheath chloroplasts.