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Guru Vishnu
Subject: Science
, asked on 16/1/17
Which of the following set of elements obeys Newland’s Octave rule? (1) Na, K, Rb (2) F, Cl, Br (3) Be, Mg, Ca (4) B, Al, Ga
Answer
4
Vaibhav Vaibhav👈✌
Subject: Science
, asked on 5/1/17
PERIODIC TABLE SHOWING THE VARIATION IN PROPERTIES DOWN THE GROUP AND PERIOD
Answer
3
Sanjay Kumar
Subject: Science
, asked on 24/12/16
which of the following is not show acidic nature?
(A)H
2
CO
3
(B)CaCO
3
(C)HCl
(D)HSO
4
-
Answer
4
Sanjay Kumar
Subject: Science
, asked on 9/12/16
why there is no place for hydrogen in modern periodic table also...?
Answer
8
Chinmay Shettar
Subject: Science
, asked on 4/12/16
saturated hydrocarbon having 7 covalent bonds
Answer
4
Erw Trjerth
Subject: Science
, asked on 22/11/16
Draw the electron dot structure of propanal, propanone and carbon tetrachloride.
Answer
2
Siddhant Mundhe
Subject: Science
, asked on 4/11/16
what are negetive catalyst explain briefly with related to carbon and carbon with help of examples
Answer
4
Aisha Gupta
Subject: Science
, asked on 2/10/16
is it true that atomic mass is double the atomic number..because the atomic num. of helium is 2 & it mass is 4..
Answer
4
Waashifa
Subject: Science
, asked on 24/9/16
write the chemical equation when magnesium is treated with very dilute nitric acid
Answer
5
Priyabrata Barik
Subject: Science
, asked on 23/9/16
give reasons:-
ionic compounds are usually hard?
sodium chloride has a high melting point?
non-metals do not displace hydrogen from dilute acids/
Answer
1
Gargi Dhananjay Kulkarni
Subject: Science
, asked on 15/1/17
Neils Bohr is the scientist who prepared modern periodic table. Is it correct ?
Answer
7
Princess Alisha
Subject: Science
, asked on 12/1/17
Draw the electron dot structure of clorine, ammonia and ethene.
Answer
3
Hermoine
Subject: Science
, asked on 25/12/16
How is the atomic mass of element in decimals,although its formula is given by no of protons +no of neutrons?
Answer
2
Saumyajeet Das
Subject: Science
, asked on 4/12/16
THE RELATIVE ATOMIC MASS OF ALUMINIUM IS 13u. EXPLAIN THE STATEMENT?
Answer
3
Arathy Venu
Subject: Science
, asked on 28/11/16
are functional groups except halogens present in alkanes?
Answer
3
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What are you looking for?
(A)H2CO3
(B)CaCO3
(C)HCl
(D)HSO4-
ionic compounds are usually hard?
sodium chloride has a high melting point?
non-metals do not displace hydrogen from dilute acids/