Home
Class 12
CHEMISTRY
Given below are two statements: One is l...

Given below are two statements: One is labelled as Resertion `A` and the other is labelled as Reason `R`.
Assertion A : can be easily reduced using Zn-Hg/HCl to
Reason R: Zn-Hg/HCl is used to reduce carbonyl group to `-CH_(2)-` group. In the light of the above statements,choose the correct answer from the options given below

A

`A` is false but `R `is true

B

Both `A` and `R` are true and `R` is the correct explanation of `A`

C

` A` is true but` R `is false

D

Both A and R are true but R is not the correct explanation of A

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • JEE MAINS 2022

    JEE MAINS PREVIOUS YEAR|Exercise CHEMISTRY (SECTION-B)|10 Videos

Similar Questions

Explore conceptually related problems

Given below are two statement : one is labelled as Assertion A and the other is labelled as Reason R: Assertion A: Size of Np^( 3 +) ion is greater than Bk^(3 + ) ion. Reason R: The above is a consequence of the lanthanoid contraction. In the light of the above statements, choose the correct answer from the options given below :

Given below are two statements : One is labelled as Assertion A and the other labelled as Reason R. Assertion A : Lithium halides are some what covalent in nature. Reason R : Lithium possess high polarisation capability. In the light of the above statements, choose the most appropriate answer from the options given below :

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R ). Assertion (A) : Lithium salts are hydrated Reason (R ): Lithium has higher polarising power than other alkali metal group members . In the light of the above statements ,choose the most appropriate answer from the options given below :

Given below are two statement : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : SO _(2) (g) is adsorbed to a large extent than H _(2) (g) on activated charcoal. Reason R : SO _(2) (g) has a higher critical temperature than H _(2) (g). In the light of the above statements, choose the most appropriate answer from the options given below.

Given below are two statements, one is labelled as Assertion (A) and other is labelled as Reason (R). Assertion (R) : Gabriel phthalimide synthesis cannot be used to prepare aromatic primary amines. Reason : Aryl halides do not undergo nucleophilic substitution reaction. In the light of the above statements, choose the correct answer from the options given below

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Hydrogen is the most abundatn element in the Universe, but it is not the most abundant gas in the troposphere . Reason R : Hydrogen is the lightest element . In the light of the above statements , choose the correct answer from the options given below :

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Sucrose is a disaccharide and a non-reducing sugar. Reason (R) : Sucrose involves glycosidic linkage between C_1 of D-glucose and C_2 of a-fructose. Choose the most appropriate answer from the options given below :

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R: Assertion A: The H-O-H bond angle in water molecule is 104.5^(@) Reason R: The lone pair - lone pair repulsion of electrons is higher than the bond pair - bond pair repulsion. In the light of the above statements, choose the correct answer from the options given below:

Given below are two statements one is labelled as Assertion A and the other is labelled as Reason R Assertion A : In TlI_(3) , isomorphous to CsI_(3) the metal is present in +1 oxidation state. Reason R: Tl metal has fourteen f electrons in the electronic configuration. In the light of the above statements, choose the most appropriate answer from the options given below:

JEE MAINS PREVIOUS YEAR-JEE MAINS 2023 JAN ACTUAL PAPER-Question
  1. The correct order of pK(a) values for the following compounds is :

    Text Solution

    |

  2. Given below are two statements: One is labelled as Assertion A and the...

    Text Solution

    |

  3. Given below are two statements: One is labelled as Resertion A and the...

    Text Solution

    |

  4. Given below are two statements: Statement : During Electrolytic refini...

    Text Solution

    |

  5. The most stable carbocation for the following is:

    Text Solution

    |

  6. Decreasing order towards SN1 reaction for the following compounds is :

    Text Solution

    |

  7. Bond dissociation energy of E-H^(*) bond of the order. A. O B. S C. S...

    Text Solution

    |

  8. Maximum number of electrons that can be accommodated in shell with n =...

    Text Solution

    |

  9. In the above conversion of compound (X) to product (Y), the sequence o...

    Text Solution

    |

  10. Match List I with List Il:

    Text Solution

    |

  11. Match List I with List Il:

    Text Solution

    |

  12. Formulae for Nessler’s reagent is :

    Text Solution

    |

  13. 1L,0.02M solution of [Co(NH(3))(5)SO(4)] Br is mixed with 1L,0.02M sol...

    Text Solution

    |

  14. The Wave function (Psi) of 2s is given by: Psi(2s)=(1)/(2sqrt2pi)(1/...

    Text Solution

    |

  15. Which of the following reaction is correct?

    Text Solution

    |

  16. Chlorides of which metal are soluble in organic solvents:

    Text Solution

    |

  17. The strength of 50 volume solution of hydrogen peroxide is Given: Mola...

    Text Solution

    |

  18. Lead storage battery contains 38% by weight solution of H(2)SO(4).The ...

    Text Solution

    |

  19. The electrode potential of the following half cell at 298K X|X^(2+)(0...

    Text Solution

    |

  20. The graph of log((x)/(M)) vs log p for an adsorption process is a stra...

    Text Solution

    |