Electron volt is a unit of
Anonymous Quiz
27%
Charge
36%
Potential difference
36%
Energy
0%
Magnetic force
The head office of botanical survey of India is located at
Anonymous Quiz
53%
Delhi
22%
Kolkata
19%
Simla
6%
Ahamdabad
In biological terminology ,a group of similar organism which are capable of interbreeding forming fertile offspring is(BHU 1988,1990)
Anonymous Quiz
36%
Species
29%
Genus
18%
Tribe
18%
Family
The first step in taxonomy is (AIMS 1990)
Anonymous Quiz
20%
Naming
57%
Identification
10%
Description
13%
Classification
Cretaria employed for present day classification for organism are best on(CBSE 1991)
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25%
Resemblance in external features
60%
Anatomical and physiological
5%
Ecological adaptation
10%
Breeding habits
Binomial nomanclature was mentioned for the first time in a book(MP PMT 1999)
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50%
Systema naturae
27%
Phylosopic zoologiq
9%
Historia plantorm
14%
None
Taxon is (chd cet 2000
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22%
Species
52%
Unit of classification
26%
Highest rank in classification
0%
Group of closely releted family
The charge to mass rotio of a particals is approximately.....the charge to mass ratio of protons
Anonymous Quiz
25%
Twice
50%
Half
25%
Four times
0%
Six times
According to aufbus principle which of the three 4d,5p,5s will be filled with electrons first
Anonymous Quiz
35%
4d
30%
5p
20%
5s
15%
4d and 5s will be filled silmutaneously
Which hydrogen like species will have same radius as that of bohr orbit of hydrogen atom?
Anonymous Quiz
20%
n=2,Li2+
53%
n=2,be3+
20%
n=2,he+
7%
n=3,Li2+
In chromium atom,in ground state the number of occupid orbitals is
Anonymous Quiz
38%
14
25%
15
31%
7
6%
12
Which of the following sets of quantum number represents the highest energy of atom
Anonymous Quiz
21%
n=3,1=0,m=0,s=+1/2
57%
n=3,1=0,m=0,s=+1/2
7%
n=3,1=2,m=1,s=+1/2
14%
None of these
(CHE) Which of the following pair of ions have same paramagnetic moment ?
Anonymous Quiz
25%
Cu+2,Ti+3
63%
Mn+2,cu+2
13%
Ti+4,Cu+2
0%
Ti+3,Ni+2
(CHE) THE Electronic transitions from n=2 to n=1 will produced shortest wavelength in(n=principal quantum state) ?
Anonymous Quiz
27%
LI2+
67%
He+
7%
H
0%
H+
(CHE) The credit of discovering neutron goes to
Anonymous Quiz
33%
Rutherford
29%
Thompson
24%
Chadweik
14%
Goldstein
(CHE) The magnetic quantum number specifies ?
Anonymous Quiz
40%
Size of orbitals
27%
Shape of orbitals
27%
Orientation of orbitals
7%
Nuclear stability
(CHE) In chromium atom ,in ground state ,the number of occupied orbitals is?
Anonymous Quiz
29%
14
41%
15
24%
7
6%
12