Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. How can we obtain Boron?
Boron is- obtained by the red-action of B2O3 with magnesium or sodium B203 is first prepared by strongly katingH3B03 which is obtained by the action of HCI or H2S04 - on a concentrated solution of borax:
NA2B4O7 + 2HCl + 5H2O------------------> 4H3BO3+ 2NaCl
2H3BO3---------------------------------> B2O3+ 3H2O
B2O3+ 3Mg------------------------------> 2B + 3MgO
Pure crystalline boron may be obtained in small quantities by the reduction of BBr3, with H2 on a heated tantalum metal filament at 1275-1475 K.
Ring-chain isomerism: This kind of isomerism is because of different modes of linking of carbon molecules, that is the isomers process either open chain or closed chain structu
The electronic configuration of element with atomic number 24 is : (1) 1s 2 2s 2 2p 6 3s 2 3p 6 3d 4 4s 2 (2) 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 (3)
I have 11.2 L of a gas at stp. I need to use the molar volume to find how many molecules are in that gas.
a) Calculate the energy required to heat 1kg of CO 2 from 400 o C to 600 o C at a constant pressure of 1atm using:- i) The mean heat capacity data given below ii) The heat c
Q. What is Activation Energy? Ans. Colliding molecules which overcome the activation energy form an activated complex. In the activated complex, original bonds are partial
what are the electron deficient molecule explain with examples
Q. What are the Properties of Nitrogen? Ans. Physical Properties of Nitrogen Nitrogen is a colorless, odorless and tasteless gas. It is particularly unreactive at roo
Oxidation no of fe in fe2o3
What are gredients for chemical and physical properties in lactic acid?
how many mole ratios can be obtained from the following equation? Na2S+Cd(NO3)2-2NaNo3+CdS
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd