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Atharva Gosavi
Subject: Science
, asked on 28/10/17
seprate solid ink from fountain pen ink
Answer
1
Shreyas
Subject: Science
, asked on 26/10/17
Q. The sample which will give positive test with conc hydrochloric acid to detect the presence of adulterant metanil yellow ::
(a) I
(b) II
(c) III
(d) IV
Answer
4
Sneha Roychowdhury
Subject: Science
, asked on 25/10/17
A mixture and a compound formed ny using iron filings and sulphur powder is added to carbon disulphide. Give result in both the cases .
Answer
2
Sneha Roychowdhury
Subject: Science
, asked on 25/10/17
What is a colloid ? Solid residue is not left on the cilter paper when a true solution or a colloid filtered .How will you separate components of a true solution and a colloid ?
Answer
1
Ravreet
Subject: Science
, asked on 23/10/17
Plz solve 6th ques.
Q.6. On adding 'x' g of the solute to 100 g aqueous solution, the concentration in terms of mass by mass percentage changes from 50 % to 60 %. Amount of solute 'x' is
(1) 20 g
(2) 10 g
(3) 35 g
(4) 25 g
Answer
3
Arish Husain
Subject: Science
, asked on 21/10/17
What is the principle of using separating funnel ?
Answer
1
Swatee Sahu
Subject: Science
, asked on 14/10/17
what happens to the force of attraction when the melting point of a substance is high..
no link please
Answer
2
Swatee Sahu
Subject: Science
, asked on 14/10/17
what is the melting point of ice in celsius scale
Answer
1
Swatee Sahu
Subject: Science
, asked on 14/10/17
the rate of evaporation becomes maximum at its boiling point. why ?
no link please..
Answer
1
Hisham Hafeez
Subject: Science
, asked on 14/10/17
With the help of a flow diagram, show the process of obtaining different gases from air. If the boiling points of Oxygen, Argon and Nitrogen are −183 C,-186 C and -196 C, which gas forms the liquid first as the air is cooled.
Answer
1
Prerna Goenka
Subject: Science
, asked on 14/10/17
Please solve this question. Question no. 71
Q.71. An ideal gas exert 2 atm pressure in a 2 L container at 100 K. The is then transferred to a one litre container and the container was heated to 200 K. What will be the final pressure of the gas in atm unit?
Answer
1
Prerna Goenka
Subject: Science
, asked on 14/10/17
Please solve this question fast. Question no. 69
Q.69. The normal boiling point of a liquid is 140
°
C. What will be the vapour pressure of the liquid at 140
°
C, in atm unit?
Answer
3
Hisham Hafeez
Subject: Science
, asked on 14/10/17
How is a solution of sugar in water different from a solution of starch in water with respect to:
a.Tynddall effect b.Filterability c.Scattering of Light
In a Form of table
Answer
2
Prerna Goenka
Subject: Science
, asked on 14/10/17
Calculate the vapour pressure of liquid in atm whose in normal boiling point is 140 degree celcius
Answer
2
Swatee Sahu
Subject: Science
, asked on 10/10/17
can we separate alcohol dissolved in water if yes describe the procedure. if no explain.no link please....
Answer
2
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What are you looking for?
(a) I
(b) II
(c) III
(d) IV
Q.6. On adding 'x' g of the solute to 100 g aqueous solution, the concentration in terms of mass by mass percentage changes from 50 % to 60 %. Amount of solute 'x' is
(1) 20 g
(2) 10 g
(3) 35 g
(4) 25 g
no link please
no link please..
Q.71. An ideal gas exert 2 atm pressure in a 2 L container at 100 K. The is then transferred to a one litre container and the container was heated to 200 K. What will be the final pressure of the gas in atm unit?
Q.69. The normal boiling point of a liquid is 140C. What will be the vapour pressure of the liquid at 140C, in atm unit?
a.Tynddall effect b.Filterability c.Scattering of Light In a Form of table