Home
Class 12
CHEMISTRY
Among the statements (a)-(d) , the corre...

Among the statements (a)-(d) , the correct ones are :
(a) Lithium has the highest hydration enthalpy among the alkali metals.
(b) Lithium chloride is insoluble in pyridine.
(c) Lithium cannot form ethynide upon its reaction with ethyne.
(d) Both lithium and magnesium react slowly with `H_(2)O`

A

(b)and (c) only

B

(a), (b) and (d) only

C

(a) and (d) only

D

(a), (c) and (d) only

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • JEE MAIN

    JEE MAINS PREVIOUS YEAR ENGLISH|Exercise CHEMISTRY|146 Videos

  • JEE MAINS

    JEE MAINS PREVIOUS YEAR ENGLISH|Exercise QUESTION|1 Videos

Similar Questions

Explore conceptually related problems

True or False a. Li is the least electronegative alkali metal. b. Potassium is the most abundant alkail metal in the earth's crust. c. Lithium reacts with nitrogen to form nitride.

Assertion: Among hydroxides of alkali metals, LiOH is the weakest base. Reason: Among alkali metals, lithium has the highest ionisation energy .

Assertion: Among hydroxides of alkali metals, LiOH is the weakest base. Reason: Among alkali metals, lithium has the highest ionisation energy .

Among statements (a) - (d) , the correct ones are (a) Lime stone is decomposed to CaO during the extraction of iron from its oxides (b) In the extraction of silver , silver is extracted as an anionic complex. (c) Nickel is purified by Mond's process . (d) Zr and Ti are purified by Van Arkel method .

Consider the following statements 1. Cs^+ ion is more highly hydrated than other alkali metal ions 2. Among the alkali metals Li, Na , K and Rb, Lithium (Li) has the highest melting point 3. Among the alkali metals , only lithium form a stable nitride by direct combination . O these statements

Among the followingstatements identify correct set of statements (a) size of Be is smaller than Mg (b) Ionisation energy of Be is greater than Al (c) Both Be and Al form covalent compounds readily (d) Both Be & Al does not react with nitrogen

Which one of the following has the largest atomic radius? a) lithium b) sodium c) potassium d) chlorine

Which of the following statements are correct for SO_(2) gas? (a) It acts as bleaching agent in moist conditions. (b) Its molecule has linear geometry. (c ) Its dilute solution is used as disinfectant. (d) It can be prepared by the reaction of dilute H_(2)SO_(4) with metal sulphide.

The correct statements among (a) to (d ) regarding H_(2) as a fuel are : (a) It Produces less pollutants than petrol. (b) A cylinder if compressed dihydrogen weight ~ 30 times more than a petrol tank producing the same amount of energy ( c ) Dihydrogen is stored in tanks of metal alloys like NaNi_(5) ( D) On combusion ,values of energy released per gram of liqiud dihydrogen and LPG are 50 and 142 kJ respectively

Which of the following statements is correct? (a). Nickel is a silver white metal. (b). Nickel dimethylglyoxime is square planer. (c). Among complexes of cobalt the most stable are those of Co^(2+) , (d). Among simple compounds of cobalt the most stable are those of CO^(2+) .

JEE MAINS PREVIOUS YEAR ENGLISH-JEE MAIN-CHEMISTRY
  1. Amongst the following , the form of water with the lowest ionic conduc...

    Text Solution

    |

  2. Biochemical oxygen demand (BOD) is defined as ............ in ppm of O...

    Text Solution

    |

  3. Among the statements (a)-(d) , the correct ones are : (a) Lithium ha...

    Text Solution

    |

  4. The decreasing order of basicity of the following amines is :

    Text Solution

    |

  5. Given following complexes (I) Na4[Fe(CN)6] (II) [Cr(H2O)6] Cl2 (III)...

    Text Solution

    |

  6. Given K(sp) for Cr(OH)3 is 6 xx 10^(-31) then determine [OH^- ]. (Negl...

    Text Solution

    |

  7. Number of sp^2 hybrid orbitals in Benzene is

    Text Solution

    |

  8. The reaction of H(3)N(3)B(3)Cl(3)(A) with LiBH(4) in tetrahydrofuran g...

    Text Solution

    |

  9. In a box a mixture containing H2, O2 and CO along with charcoal is pre...

    Text Solution

    |

  10. Monomer(s) of which of the given polymer is chiral?

    Text Solution

    |

  11. Given complex [Co(NH3)4Cl2]. In it if Cl – Co – Cl bond angle is 90^@ ...

    Text Solution

    |

  12. Reactant A represented by square is in equilibrium with product B repr...

    Text Solution

    |

  13. Consider the following reactions The compound [P] is :

    Text Solution

    |

  14. The true statement amongst the following is :

    Text Solution

    |

  15. In which compound C–Cl bond length is shortest

    Text Solution

    |

  16. When same amount of zinc is treated separately with excess of H(2)SO(4...

    Text Solution

    |

  17. Given an element having following ionisation enthalpies IE1 = 496 (kJ)...

    Text Solution

    |

  18. Total number of Cr–O bonds in Chromate ion and dichromate ion is.

    Text Solution

    |

  19. Lacto bacillus has generation time 60 min. at 300 K and 40 min. at 400...

    Text Solution

    |

  20. 0.1 mole of an ideal gas has volume 1 dm^3 in a locked box with fricti...

    Text Solution

    |