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  • 4 answers

Shivshant Upadhyay 7 years, 2 months ago

+4 oxidation number.

Sanjana Arora 5 years, 9 months ago

K shows +1 oxidation state

Aakash Sir 7 years, 2 months ago

-32

Rahul Yadav 7 years, 2 months ago

Potassium has 4 oxidation number + 4
  • 1 answers

Vicky Kumar 7 years, 2 months ago

This kind of electron distribution in unsaturated compounds conjugated with electron-releasing or withdrawing groups or atoms is called mesomeric effect. The inductive effect is a permanent state of polarization. The electron density in a bond between two unlike atoms is not uniform.
  • 2 answers

Aakash Sir 7 years, 2 months ago

Spelling mistakes reduction + oxidation = redox reaction

Aakash Sir 7 years, 2 months ago

Reation + oxidation = redox reaction
  • 1 answers

Munuho Lohe 7 years, 2 months ago

1) used in manufacture of metal hydrides and hydrogen chloride 2) used to reduce heavy metals oxides to metals and used as a rocket fuel in space research
  • 1 answers

Christin Mathew 7 years, 2 months ago

At which reaction rate and product rate are at equilibrium
  • 3 answers

Chesta Pawan Manchanda 7 years, 2 months ago

History of carbon compound

Christin Mathew 7 years, 2 months ago

Environment chemistry

Subhra Mistry 7 years, 2 months ago

What subject?
  • 3 answers

Christin Mathew 7 years, 2 months ago

Solid state +p-block elements from +2 syllabus

Aman Kumar 7 years, 2 months ago

Yah... Solid state chapter is added...

Vicky Kumar 7 years, 2 months ago

Solid state
  • 1 answers

Bhawna Haldiya 7 years, 2 months ago

Alkali metal are very good reducing agents because of their tendency to lose electrons . The reducing charater increase from Na to Cs .However ,Li is stronger reducing agent .........Lithium being small in size has high ionization enthalpy .
  • 1 answers

Aman Kumar 7 years, 2 months ago

When 2 elements combined together to form compound, then then the weight of the element combined with the fixed weight of another element bear a simple whole number ratio...
  • 2 answers

Subhra Mistry 7 years, 2 months ago

Extremely informative abhiveer.

Abhiveer Tiwari 7 years, 2 months ago

Law proposed by henry
  • 1 answers

Pragati Gola 7 years, 2 months ago

Let the oxidation number of B in NaBH4 is x then, oxidation number of Na+oxidation number of B+oxidation number of H=net charge on NaBH4 =1+x+(-1)4=0 =x-4+1=0 x=+3
  • 2 answers

Sunny Bhardwaj 7 years, 2 months ago

We can't say anything fully isolated.....but some isolated systems are thermos flask , hotcase ,

Ʌɐpɐʎ Ɐuɐɥsɹɐp . 7 years, 2 months ago

Thermos flask or any other closed isolated vessel.
  • 1 answers

Zalak Patel????️ 7 years, 2 months ago

Bcoz he left some places for elements to put new introduce elements
  • 1 answers

Saksham Bhasin 7 years, 2 months ago

Dual behaviour of matter means matter has both particle as well as wave like properties.
  • 2 answers

Sandeeep Singh 7 years, 2 months ago

Thanks bro

Aman Kumar 7 years, 2 months ago

Difference between reductant agent and reduction is:- In reduction, gain of electron take place but in case of reluctant agent,.. The species which loss electron itself to make the gain of electron for other one...
  • 1 answers

Pragati Gola 7 years, 2 months ago

pH =-log (H+ ion) =-log (3.8×10^-8) =-[log (3.8)+log(10^-8)] =-[-7.42] =7.42
  • 0 answers
  • 1 answers

Sandeeep Singh 7 years, 2 months ago

F=G Mm/r squre F= 6.7 X 10's power minus 11 X 100 X 100/squre of 1
  • 0 answers
  • 2 answers

Krishna Murari 7 years, 2 months ago

Sp3

Barak Shabh?? 7 years, 2 months ago

Sp3
  • 4 answers

Krishna Murari 7 years, 2 months ago

Kg

Hemant Rathod 7 years, 2 months ago

Mass = kg

Sajid Ali 7 years, 2 months ago

Kia yr joke kar rahe ho kia?

Pragati Gola 7 years, 2 months ago

Kg
  • 1 answers

Vicky Kumar 7 years, 2 months ago

Thermodynamics is the branch of physics concerned with heat and temperature and their relation to energy and work. The behavior of these quantities is governed by the four laws of thermodynamics, irrespective of the composition or specific properties of the material or system in question.
  • 4 answers

Pragati Gola 7 years, 2 months ago

Catalyst provides lowest energy path for reaction by decreasing activation energy.

Pragati Gola 7 years, 2 months ago

Those substances which increase the rate of reaction without taking part in it.

Vicky Kumar 7 years, 2 months ago

Without being used in the reaction........!

Tushar Pandey 7 years, 2 months ago

Those substance which alter the rate of a reaction are called catalysts.
  • 2 answers

Vicky Kumar 7 years, 2 months ago

Frenkel is a type of defect in crystalline solids where in an atom is displaced from its lattice position to an interstitial site, creating a vacancy at the original site and an interstitial defect at the new location without any changes in chemical properties

Vicky Kumar 7 years, 2 months ago

Schottky defect occurs when oppositely charged atoms (cation and anion) leave their corresponding lattice sites and create a pair of Vacancy Defects.
  • 1 answers

Vicky Kumar 7 years, 2 months ago

Ferro magnetic: the magnetic materials which show permanent magnetism even when the magnetic field is removed.They contain unpaired electrons in maximum number aligned in only ond direction .Ex: Ni Co Fe Anti ferromagnetic: in this magnetic moments of materials are aligned in such a wat that net magnetic moment becomes zero.Ex: MnO Ferrimagnetic:In this magnetic moments of the materials are aligned in parallel and anti parallel directions in unequal numbers.These materials loose their magnetism on heating and becomes paramagnetic.Ex:Fe3O4, ZnFe2O4,MgFe2O4

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