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Subject: Chemistry, asked on 27/3/20

And with explanation

Subject: Chemistry, asked on 20/3/20

experts pls answer question no
120.experts please revert back quickly and as soon as possible try to answer my question please you have been avoiding these questions for long time

Subject: Chemistry, asked on 25/12/19

Explain in brief

Subject: Chemistry, asked on 22/6/19

Challenge to all merit nation experts...

Q. 6.5g KOH, NaOH and Na2CO3 were dissolved in water & made up to 250ml 25ml of this solution requires 26.23 ml of semi normal H2SO4 when methyl orange is used as a indicator another 25ml of this solution requires 19.5ml semi normal sulphuric acid using phenolphthalein as indicator. Find a composition by mass of the mixture.

Subject: Chemistry, asked on 22/6/19

Solve this chemistry problem..challenge.

Q. 16.6g NaOH and Na2CO3 were dissolved in water & md up to 1L. 25ml of this solution requires 17.5 ml 0.25M H2SO4 using methyl orange as an indicator. If 20ml of the same solution is titrated using 0.1M HCl & phenolphthalein as indicator find out the volume of HCl required. →(50 ml)  

Subject: Chemistry, asked on 27/2/19

plz ans these qu

Subject: Chemistry, asked on 8/8/18

Can someone answer this 2questions

Subject: Chemistry, asked on 22/3/18

Answer 29
Q.29. Define Ionization enthalpy. Why second ionization enthalpy is greater than first ionization enthalpy? Explain Markownikoff's rule with suitable example.

Subject: Chemistry, asked on 22/3/18

Answer 24:

Q.24 What are silicones ? Give their applications. 
 

Subject: Chemistry, asked on 22/3/18

How is n-butane prepared from ethyl bromide?
What is the action of following on ethane?
(a) Br2, Δ in presence of AlBr3
(b) Concentrated HNO3, Δ

Subject: Chemistry, asked on 18/2/18

i. The positive slope of metal oxides shows that their stabilities increase with increase in temperature. The decrease in their stabilities is due to an increase in ∆G° value.

Subject: Chemistry, asked on 4/12/17

how to prepare for metallurgy lesson std 12th????

Subject: Chemistry, asked on 13/1/16

Which are important ores of different metals?

Subject: Chemistry, asked on 19/5/20

?????? of v p

Subject: Chemistry, asked on 23/9/19

experiments. (a) Z?nc metal is added to aqueous sodium triiodide (b) lodine is added to excess aqueous HCIO, Why is permanganate not a suitable oxidizing agent for quantitative estimation of Fe" in presence of HCI? (10) Describe the magnetic separation process. (41) At 673K, which is the better reducing agent Carbon or carbon monoxide? (12) Explain the working of froth floatation process (13) Explain the terms G1) Roasting Gv) Calcination (0) Leaching G) Smelting

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