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Afreen
Subject: Chemistry
, asked on 2/2/20
explain anomalous behaviour of Nitrogen
Answer
1
Afreen
Subject: Chemistry
, asked on 2/2/20
write the different Oxidation state of maganese .why + 2 Oxidation state of MN is more stable
Answer
1
Ashish Singh
Subject: Chemistry
, asked on 28/1/20
Explain the position of lanthanide in the periodic table...??
Answer
1
Afreen
Subject: Chemistry
, asked on 12/1/20
which oxyacid of phosphorus has a tendency to show higher and lower Oxidation State
Answer
1
Lakshmi Sathyan
Subject: Chemistry
, asked on 16/11/19
1st ques plz solve asap
Answer
1
Lakshmi Sathyan
Subject: Chemistry
, asked on 15/11/19
Plz explain that 2nd pt. Asap
Answer
1
Ashish Singh
Subject: Chemistry
, asked on 29/8/19
Help me in Q5 & Q6
Answer
1
Ashish Singh
Subject: Chemistry
, asked on 29/8/19
Why do lanthanoids form coloured ions
Answer
1
Jai Shah
Subject: Chemistry
, asked on 10/5/19
The solution for this question does not math the correct option given :
Q6. Madhav during an inorganic experiment treated magnesium ribbon with sulphuric acid and observed an evolution of a gas. He stored the gas in a flask having a capillary tube. To predict the nature of the gas, he brought a lighted matchstick near the mouth of the capillary tube and observed that the matchstick went off followed by a pop sound. He concluded it to be hydrogen. When he treated the magnesium ribbon with conc. HCI, no characteristic observation was made. This is probably due to:
(A) NO
–
3
ion is reduced in preference to hydronium ion
(B) Conc. HNO
3
is a weaker acid than conc. H
2
SO
4
and conc. HCI
(C) Conc. HNO
3
acts as a reducing agent
(D) Magnesium is more reactive than H
2
Answer
1
Nikita Waghmare
Subject: Chemistry
, asked on 1/3/19
can oxidation state of scandium be +2
Answer
1
Nikita Waghmare
Subject: Chemistry
, asked on 1/3/19
plz tell ..what are the possible oxidation states of.scandium
Answer
1
Kingsmen
Subject: Chemistry
, asked on 1/10/18
Please solve this
Answer
1
Essa Amir Hamza Khan
Subject: Chemistry
, asked on 4/11/17
Solve this:
In which of the following pairs both are nucleophiles ?
(a) BF
3
.AlCl
3
(b) NO
2
+
.Cl
-
(c) CN
-
.NH
3
(d) Br
+
.BCl
3
Answer
1
Gayatri
Subject: Chemistry
, asked on 7/10/16
In d block , for the reaction of Potassium chromte why we ues CaCO3 ( soda)? And how
is the reaction form?
Answer
1
Apoorva
Subject: Chemistry
, asked on 17/8/16
Solve this:
Answer
1
1
2
3
4
5
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Q6. Madhav during an inorganic experiment treated magnesium ribbon with sulphuric acid and observed an evolution of a gas. He stored the gas in a flask having a capillary tube. To predict the nature of the gas, he brought a lighted matchstick near the mouth of the capillary tube and observed that the matchstick went off followed by a pop sound. He concluded it to be hydrogen. When he treated the magnesium ribbon with conc. HCI, no characteristic observation was made. This is probably due to:
(A) NO–3 ion is reduced in preference to hydronium ion
(B) Conc. HNO3 is a weaker acid than conc. H2SO4 and conc. HCI
(C) Conc. HNO3 acts as a reducing agent
(D) Magnesium is more reactive than H2
In which of the following pairs both are nucleophiles ?
(a) BF3.AlCl3 (b) NO2+.Cl-
(c) CN-.NH3 (d) Br+.BCl3
is the reaction form?