Question is ⇒ Which of the following is incorrect?, Options are ⇒ (A) Mercury: Hg, (B) Silver: Ag, (C) Sodium: Na, (D) Potassium: Ka, (E) , Leave your comments or Download question paper.

Question is ⇒ Which of the following is incorrect?, Options are ⇒ (A) Mercury: Hg, (B) Silver: Ag, (C) Sodium: Na, (D) Potassium: Ka, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Which of the following is incorrect?
A.	Mercury: Hg [Wrong Answer]
B.	Silver: Ag [Wrong Answer]
C.	Sodium: Na [Wrong Answer]
D.	Potassium: Ka [Correct Answer]
View Answer 3 -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 :

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

⇒ The law which states that the amount of gas dissolved in a liquid is proportional to its partial pressure is
Dalton's law
Gay Lussac's law
Henry's law
Raoult's law

⇒ The metal that is usually extracted from sea water is
Ca
Na
K
Mg

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

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

⇒ The mass number of an atom is equal to
the number of protons
the number of protons and electrons
the number of nucleons
the number of neutrons

⇒ 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 most important ore of aluminium is
bauxite
magnetite
haematite
monazite

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

⇒ The heat required to raise the temperature of body by 1 K is called
specific heat
thermal capacity
water equivalent
None of the above

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

⇒ The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind?
01-Jun
01-Mar
01-Aug
01-Apr

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

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

⇒ Equal masses of oxygen, hydrogen and methane are kept under identical conditions. The ratio of the volumes of gases will be
02:16:02
02:16:01
01:16:02
01:01:01

⇒ The oldest rocks in the earth's crust were once molten, and came from deep inside the earth. The molten rock, called magma, spewed out in volcanic eruptions during the earth;s early life and solidified into hard rock's called
granite
basalt
igneous rocks
sedimentary rocks

⇒ The formula CH-CO-CHrepresents
Acetone
Acetic acid
Acetophenone
Phenyl acetate

⇒ The main active constituent of tea and coffee is
nicotine
chlorophyll
caffeine
aspirin

⇒ The organic reaction represented by equation CH- CH = O + HNOH gives CH- CH - NH + HO is an example of
an addition reaction
a condensation reaction
an oxidation reaction
an elimination reaction

⇒ The items amenable to detection by soft x-rays are
contrabands
lead in bullets
narcotics
genuine coins from counterfeit coins

⇒ The nuclear particles which are assumed to hold the nucleons together are
electrons
positrons
neutrons
mesons

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

⇒ The isomerism which exists between CHCHCIand CHCI. CHCI is
chain isomerism
functional group isomerism
positional isomerism
metamerism

⇒ The National Chemical Laboratory is situated in
New Delhi
Bangalore
Pune
Patna

⇒ The mineral containing both magnesium and calcium is
magnesite
calcite
carnallite
dolomite

⇒ The molecules of which gas have highest speed?
H2 at -73oC
CH4 at 300 K
N2 at 1,027oC
O2 at 0oC

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

⇒ Which of the following is incorrect?
Mercury: Hg
Silver: Ag
Sodium: Na
Potassium: Ka