Question is ⇒ Which among the following is not a natural occurring element?, Options are ⇒ (A) Uranium, (B) Thorium, (C) Californium, (D) Neptunium, (E) , Leave your comments or Download question paper.

Question is ⇒ Which among the following is not a natural occurring element?, Options are ⇒ (A) Uranium, (B) Thorium, (C) Californium, (D) Neptunium, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Which among the following is not a natural occurring element?
A.	Uranium [Wrong Answer]
B.	Thorium [Wrong Answer]
C.	Californium [Wrong Answer]
D.	Neptunium [Correct Answer]
View Answer 2 -1 Explanation:- Answer : D Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

Previous question Next question

Also Read Similar Questions Below :

⇒ Which among the following is not a noble gas?
Argon
Radon
Neon
Bromine

⇒ The heat energy produced when the human body metabolises 1 gram of fat is
30 KJ
1 KJ
39 KJ
29 KJ

⇒ Zone refining is used for the purification of
Au
Ge
Ag
Cu

⇒ The molecule which has the highest percentage of ionic character among the following is
HI
HF
HCI
HBr

⇒ The names of the scientists, Newlands, Mendeleev, and Meyer are associated with the development of
atomic structure
metallurgy
periodic table of contents
discovery of elements

⇒ The most extensive, commercially useful source of thorium as monazite sand occurs in India at
Orissa coast
Travancore coast
West Bengal coast
Gujarat coast

⇒ The material which can be deformed permanently by heat and pressure is called a
thermoplastic
thermoset
chemical compound
polymer

⇒ The number of g-molecule of oxygen in 6.02 x 10CO molecules is
1 gram of molecule
0.5 gram of molecule
5 gram of molecule
10 gram of molecule

⇒ The molecular formula of phosphorous is
P1
P2
P3
P4

⇒ The hardest form of carbon is
coke
graphite
diamond
charcoal

⇒ The metal does not give Hon treatment with dilute HCL is
Zn
Fe
Ag
Ca

⇒ The first metal used by man was
iron
copper
gold
bronze

⇒ Which among the following is not a natural occurring element?
Uranium
Thorium
Californium
Neptunium

⇒ The number of d-electrons in Fe(Z = 26) is not equal to that of
p-electrons in Ne(Z = 10)
s-electrons in Mg(Z = 12)
d-electrons in Fe(Z = 26)
p-electrons in CI(Z = 17)

⇒ The inherited traits of an organism are controlled by
RNA molecules
nucleotides
DNA molecules
enzymes

⇒ Which among the following gases is used to manufacture chloroform?
Propane
Ether
Radon
Methane

⇒ The most electropositive elements among the following is
Na
Ca
K
Cs

⇒ The metal used to recover copper from a solution of copper sulphate is
Na
Ag
Hg
Fe

⇒ The oil used in the froth floatation process is
coconut oil
olive oil
kerosene oil
pine oil

⇒ The hottest part of the gas flame is known as
luminous zone
dark zone
blue zone
non-luminous zone

⇒ Liquefied petroleum gas (LPG) consists of
butane and propane
ethane and hexane
ethane and nonane
None of these

⇒ The metallurgical process in which a metal is obtained in a fused state is called
smelting
roasting
calcinations
froth floatation

⇒ The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in
1.8 gram of H2O
12 moles of KMnO4
0.6N H2SO4
4.6 gram of C2H5OH

⇒ The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is
helium
ozone
oxygen
methane

⇒ The major constituent of air is
nitrogen
carbon dioxide
oxygen
hydrogen

⇒ The graphite rods in the nuclear reactor
react with U to release energy
produce neutrons
undergo combustion which triggers the nuclear fission
convert fast moving neutrons into thermal neutrons

⇒ The most electronegative element among the following is
sodium
bromine
fluorine
oxygen

⇒ The luster of a metal is due to
its high density
its high polishing
its chemical inertness
presence of free electrons

⇒ The ionisation energy of hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2orbit to 3orbit is
5x/36
5x
7.2 x
x/6

⇒ Which of the following is a chemical change?
Evaporation of water
Burning of candle
Glowing of an electric bulb
Liquefiction of air