हिंदी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान कक्षा ११

Which of the following is a Lewis acid? - Chemistry

Advertisements
Advertisements

प्रश्न

Which of the following is a Lewis acid?

विकल्प

  • AlCl3

  • MgCl2

  • CaCl2

  • BaCl2

MCQ
Advertisements

उत्तर

AlCl

Explanation:

Lewis acids are the species in which the state is not complete and ready to accept electrons. Because Al is surrounded by 6 electrons in AlCl3 and all three Cl atoms are surrounded by 8 electrons, AlCl3 is an electron acceptor. It is a covalent compound.

shaalaa.com
Group 14 Elements - The Carbon Family
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 11: The p-block Elements - Multiple Choice Questions (Type - I) [पृष्ठ १३४]

APPEARS IN

एनसीईआरटी एक्झांप्लर Chemistry [English] Class 11
अध्याय 11 The p-block Elements
Multiple Choice Questions (Type - I) | Q 2 | पृष्ठ १३४

संबंधित प्रश्न

Discuss the pattern of variation in the oxidation states of C to Pb.


Explain why is there a phenomenal decrease in ionisation enthalpy from carbon to silicon?


Elements of group 14 ________.


Rationalise the given statement and give a chemical reaction:

Lead (IV) chloride is highly unstable towards heat.


Rationalise the given statement and give a chemical reaction:

Lead is known not to form an iodide, PbI4.


Classify the following oxide as neutral, acidic, basic or amphoteric:

B2O3


Classify the following oxide as neutral, acidic, basic or amphoteric:

PbO2


Classify the following oxide as neutral, acidic, basic or amphoteric:

Tl2O3


Write suitable chemical equations to show the nature of the following oxide.
CO

Write suitable chemical equations to show the nature of the following oxide.

B2O3


Write suitable chemical equations to show the nature of the following oxide.

SiO2


Write suitable chemical equations to show the nature of the following oxide.

CO2


Write suitable chemical equations to show the nature of the following oxide.

PbO2


Catenation i.e., linking of similar atoms depends on size and electronic configuration of atoms. The tendency of catenation in Group 14 elements follows the order:


The reason for small radius of Ga compared to Al is:

(i) poor screening effect of d and f orbitals.

(ii) increase in nuclear charge.

(iii) presence of higher orbitals.

(iv) higher atomic number.


The linear shape of CO2 is due to:

(i) sp3 hybridisation of carbon.

(ii) sp hybridisation of carbon.

(iii) pπ – pπ bonding between carbon and oxygen.

(iv) sp2 hybridisation of carbon.


Explain the following:

CO2 is a gas whereas SiO2 is a solid.


The +1 oxidation state in group 13 and +2 oxidation state in group 14 becomes more and more stable with increasing atomic number. Explain.


Explain the following:

Carbon shows catenation property but lead does not.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×