Properties of Lead:
Physical properties:
1. The lead is a bluish grey metal with a bright gleam.2. It is soft and can be slice with a knife and drawn into a wire and rolled into sheet.3. It is not a good conductor of electricity and heat.4. It marks on paper.Chemical properties:
1. Action of air:
i) It is not affected by dry air however in moist air a layer of lead carbonate or lead hydroxide is deposited on its surface that protects it from additional action of air.
ii) Whenever heated in air or oxygen, lead is oxidized to litharge (i.e., PbO) and red lead (i.e., Pb3O4)2Pb + O2 → 2PbO3Pb + 2O2 → Pb3O42. Action of water:
Lead is not attacked by pure water in the deficiency of air; however water having dissolved air has a solvent action on it due to the formation of lead hydroxide (i.e., a poisonous substance). This phenomenon is termed as Plumbo solvency.2Pb + O2 + 2H2O → 2Pb (OH)23. Action of acids:
i) Dilute H2SO4 and HCl encompass no action on lead.ii) Hot Conc. H2SO4 releases SO2 however the reaction is retarded by the formation of an insoluble layer of lead sulphate.
Pb + 2H2SO4 → PbSO4 + 2H2O + SO2 ↑iii) Concentrated HCl develops hydrogen and also forms Chloroplumbic acid
Pb + 2HCl → PbCl2+H2 ↑PbCl2+ 2HCl ↔ H2PbCl4 chloroplumbic acidUses: Lead is used:
1. For manufacturing lead pipes,
2. For constructing telegraph and telephone wires,
3. In the production of bullets and lead accumulators,
4. In lead chambers, for the making of sulphuric acid,
5. For manufacturing alloys such as solder, pewter and type metal,
6. For making tetraethyl lead (Pb(C2H5)4) that is employed as an additive to petrol to prevent the knocking.
Latest technology based Chemistry Online Tutoring Assistance
Tutors, at the www.tutorsglobe.com, take pledge to provide full satisfaction and assurance in P Block elements homework help via online tutoring. Students are getting 100% satisfaction by online tutors across the globe. Here you can get homework help for P Block elements, project ideas and tutorials. We provide email based P Block elements homework help. You can join us to ask queries 24x7 with live, experienced and qualified online tutors specialized in P Block elements. Through Online Tutoring, you would be able to complete your homework or assignments at your home. Tutors at the TutorsGlobe are committed to provide the best quality online tutoring assistance for Inorganic-Chemistry Homework Help and assignment help services. They use their experience, as they have solved thousands of the Chemistry assignments, which may help you to solve your complex issues of P Block elements. TutorsGlobe assure for the best quality compliance to your homework. Compromise with quality is not in our dictionary. If we feel that we are not able to provide the homework help as per the deadline or given instruction by the student, we refund the money of the student without any delay.
tutorsglobe.com ascomycotina assignment help-homework help by online division eumycota tutors
www.tutorsglobe.com offers Administration Overheads homework help, assignment help, case study, writing homework help, online tutoring assistance by accounting tutors.
tutorsglobe.com biosynthesis of phospholipids assignment help-homework help by online phospholipids tutors
tutorsglobe.com fiber plant-cotton assignment help-homework help by online economic importance tutors
Theory and lecture notes of Balanced-Growth path all along with the key concepts of the balanced-growth path, theory of economic growth, estimating balanced-growth path, homework help and assignment help. Tutorsglobe offers homework help, assignment help and tutor’s assistance on Balanced-Growth path.
Relieve your academic burden with PhD Digital Circuitry Assignment Help experts at affordable prices and score impeccable grades.
tutorsglobe.com applications of valence bond theory assignment help-homework help by online valence bond theory tutors
tutorsglobe.com change of electron affinity along a group assignment help-homework help by online electron affinity tutors
tutorsglobe.com right and left brain concept assignment help-homework help by online co-ordination systems tutors
Algae tutorial all along with the key concepts of General features of Algae, Forms of algae, Reproduction in Algae and Importance of Algae
tutorsglobe.com vitamins assignment help-homework help by online nutrition tutors
www.tutorsglobe.com offers nucleophilic reactions homework help, nucleophilic reactions assignment help, online tutoring assistance, organic chemistry solutions by online qualified tutor's help.
Theory and lecture notes of Data management system as subsystem all along with the key concepts of data management system as subsystem, transaction management. Tutorsglobe offers homework help, assignment help and tutor’s assistance on Data management system as subsystem.
tutorsglobe.com advantages-disadvantages of hydroponics assignment help-homework help by online functions of minerals tutors
tutorsglobe.com laboratory diagnosis of shigella assignment help-homework help by online shigella tutors
1954594
Questions Asked
3689
Tutors
1471758
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!