Which of the following pair shows metamerism?
Anonymous Quiz
0%
Pentane and isopentane
67%
Methoxypropane and Ethoxyethane
33%
Propanone and propanal
0%
None of these
Which of the following is an isomer of ethanol ?
Anonymous Quiz
24%
Dimethyl ether
33%
Diethyl ether
19%
Methanol
24%
Acetone
Which among the following is a electrophile ?
Anonymous Quiz
35%
BF₃
27%
NC⁻
27%
CH₃
12%
None of these
Which of the following is the condensed formula of ethane ?
Anonymous Quiz
42%
CH₃-CH₃
4%
H₂C-H-CH₃
35%
CH₃CH₃
19%
CH₂=CH₂
Which of the following is not a hetero atom?
Anonymous Quiz
48%
Carbon
10%
Oxygen
38%
Chlorine
5%
Sulpher
Which of the following is the condensed formula of ClCH₂CH₂CH₂CH₂CHCH₂CH₂CH₂CHCH₂CH₃?
Anonymous Quiz
21%
Cl (CH₂)₂(CH₂)₂CH (CH₂)₂CH₂CH₂CH₃
7%
Cl(CH₂)₃CH₂CHCH₂CH₂CH₂CH(CH₃)₂
36%
Cl(CH₂)₄CH(CH₂)₃CH (CH₂)CH₃
36%
Cl (CH₂)₃CH₂CH₂CH(CH₃)₂CH₃CHCH₂CH₃
Which of the following is alicyclic compounds?
Anonymous Quiz
21%
Cyclopropane
29%
Benzene
43%
Ethane
7%
Hexane
Which among the following is not an example of Acyclic compound?
Anonymous Quiz
36%
Ethane
29%
Acetaldehyde
21%
Tetrahydrofuran
14%
Iso butane
The most abundant element in Universe is
Anonymous Quiz
46%
Hydrogen
29%
Oxygen
8%
Silicon
17%
Carbon
Hydrogen is ________ most abundant element in earth
Anonymous Quiz
21%
Third
29%
Second
50%
First
0%
fourth
In atomic form hydrogen consists of
Anonymous Poll
17%
2 protons,2 electrons
83%
1 proton,1 electron
In elemental form hydrogen exists as
Anonymous Quiz
46%
Diatomic form
14%
Triatomic form
21%
Monoatomic form
18%
Ionic form
Hydrogen present in_______of periodic table
Anonymous Quiz
44%
First group
6%
Second group
3%
First period
47%
Both a and c
👍1
The alkali metals show ____ trends in their physical and chemical properties with the increasing atomic number.
Anonymous Quiz
24%
irregular
18%
distorted
47%
regular
12%
Plateau-like
Which of the following is electronic configuration of Cs?
Anonymous Quiz
20%
[Rn] 6s¹
15%
[Xe] 5s¹
20%
[Rn] 7s¹
45%
[Xe] 6s¹
In group 1 salts of ___ are mostly hydrated.
Anonymous Quiz
40%
Lithium
20%
Beryllium
40%
Sodium
0%
Caesium
Find out the incorrect statement regarding atom.
Anonymous Quiz
0%
Determination of atomic size cannot be precise.
70%
Size of atom is about 1.2 A
30%
There are practical ways by which size of individual atom can be measured.
N⁻³ and Na⁺ have same
Anonymous Quiz
20%
Atomic no.
15%
Mass No.
60%
No. of electrons
5%
No. of neutrons