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Dipendu Gupta
Subject: Science
, asked on 15/3/18
Esters will turn litmus paper red or blue ??
Answer
4
Tanisha
Subject: Science
, asked on 14/3/18
Reaction when zinc reacts with ethanoic acid...
Answer
4
Vijayalaxmi
Subject: Science
, asked on 14/3/18
fulform pf caocl2
Answer
2
Siddharth Ganesh
Subject: Science
, asked on 13/3/18
Will questions related to activities come in exam or only the ones in the lab manual ?
Answer
1
Champ Jee
Subject: Science
, asked on 13/3/18
Expert you answered to my previous que, that the pH will shift to 5 or even less. Then, here acetic acid will become a strong acid?? Q22. 22. If. i' win
22. If a solution acetic acid in water highly concentrated, will this called a weak acid or a strong acid ? Why.
Answer
3
Champ Jee
Subject: Science
, asked on 13/3/18
Experts, what does science mean while concentrating a solution... I mean if suppose I concentrate a solution of weak acid of pH 6, then will the pH shift to 5 or 4?? Or what happens to acid while concentrating?
Answer
1
Yash Chavan
Subject: Science
, asked on 13/3/18
if 10 ml of hcl is added to 100ml of water and in other test tube 59ml of hcl is added to 100 ml of water . Will there be any difference in pH of solutions or will the pH remain same?
Answer
3
Moin
Subject: Science
, asked on 13/3/18
sir why
sulphuric acid
is called the kings of acids. why not
HCL
Answer
6
Son Ser
Subject: Science
, asked on 7/3/18
Q. If in a test tube dil
H
2
S
O
4
is taken and in other concentrated
H
2
S
O
4
is taken. How can we recognise the test tube that contains concentrated
H
2
S
O
4
Answer
1
Son Ser
Subject: Science
, asked on 7/3/18
Plzz fast i have exams tomorrow
If in a Testube dil. H
2
SO
4
is taken and other conc.H
2
SO
4
in taken. How can we recognise the testube that contain
conc.
H
2
SO
4
Answer
1
Siddhi
Subject: Science
, asked on 6/3/18
A blue litmus paper was first dipped in dilute HCL and then in dil NaOH solution what can be observed
Answer
3
Prithika
Subject: Science
, asked on 4/3/18
Is everything in the world acid,base or salt?
Answer
4
Ashmita Debnath
Subject: Science
, asked on 2/3/18
Q. The following organisms form a food chain. Insect, Hawk, Grass, Snake, Frog Which of these will have highest concentration of non-biodegradable chemicals? Name the phenomenon.
Answer
5
Ashmita Debnath
Subject: Science
, asked on 1/3/18
i) "pH has a great importance in our daily life" explain by giving five examples
ii) A compound which is prepared from gypsum has the property of hardening when mixed with a proper quantity of water. Identify the compound and write its chemical formula. Write the chemical equation for its preparation. Mention uses of the compound (3-5 points)
Answer
7
Rohit Patil
Subject: Science
, asked on 28/2/18
For what purpose is plaster of paris used in laboratory
Answer
2
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What are you looking for?
22. If a solution acetic acid in water highly concentrated, will this called a weak acid or a strong acid ? Why.
Q. If in a test tube dil is taken and in other concentrated is taken. How can we recognise the test tube that contains concentrated
If in a Testube dil. H2SO4 is taken and other conc.H2SO4 in taken. How can we recognise the testube that contain conc. H2SO4
ii) A compound which is prepared from gypsum has the property of hardening when mixed with a proper quantity of water. Identify the compound and write its chemical formula. Write the chemical equation for its preparation. Mention uses of the compound (3-5 points)