1, 2 and 3
2 and 3 only
2 only
3 only
Hydrogencarbonates
Carbonates
Chlorides
Sulphates
Oxygen
Hydrogen
Chlorine
Carbon
`N_(2)O`
`N_(2)O_(3)`
`NO_(2)`
`N_(2)O_(5)`
maximum at `0 ^(0)C`
minimum at `0 ^(0)C`
maximum at `4 ^(0)C`
maximum at `-4 ^(0)C`
Benzene
Hexane
Naphthalene
Anthracene
sulphates of sodium and potassium
sulphates of magnesium and calcium
carbonates of sodium and magnesium
bicarbonates of magnesium and calcium
Oxygen
Nitrogen
Hydrogen
Methane
water gas
producer gas
industrial gas
fuel gas
1, 2 and 3
Only 1
1 and 3
Only 3
Fullerenes have only six-membered carbon rings
Fullerenes are cage-like molecules
Diamond is thermodynamically the most stable allotrope of carbon
Graphite is slippery and hard and is therefore used as a dry lubricant in machines
diamond
graphite
fullerene
coal
basic oxides
acidic oxides
amphoteric oxides
neutral oxides
diamond
graphite
charcoal
fullerene
Only 1
2 and 3
1 and 3
Only 3
dielectric constant of water
surface tension of water
specific heat of water
heat of fusion of water
1 and 2
1, 2 and 3
3 and 4
Only 2
Both the statements are individually true and Statement II is the correct explanation of Statement I
Both the statements are individually true and Statement II is not the correct explanation of Statement I
Statement I is true, but Statement II is false
Statement I is false, but Statement II is true
calgon process
ion-exchange resin process
Clark's process
permutit process
1 and 3
Only 1
2 and 3
1 and 4
water does not solidify at `0^o C`
a certain arnount of heat must be supplied to the glass of water so as to solidify
a certain amount of heat must be taken out from the glass of water so as to solidify
Only water solidifies at 0 K
Only 1
1 and 3
2 and 4
1, 2 and 3
1, 3 and 4
2, 3 and 4
1, 2 and 3
2 and 4
Boiling
Reverse osmosis
ion exchange
Coagulation adsorption
X is `SO_2` and it turns moist litmus to blue
X is `SO_3` and it turns moist litmus to blue
X is `SO_2` and it turns moist litmus to red
X is `SO_3` and it turns dry litmus to blue
with a piece of cloth
by adding cold water
by adding solid `Na_2CO_3`
by adding solid `BaCl_2`
1 and 3
2 and 3
1 and 2
1, 2 and 3
It is the most stable allotrope of carbon
It is an electrically conducting material
Crystalline spherical beads of graphite have very good lubricating property under dry conditions
It is the higher grade of coal
Column I | Column II | ||
---|---|---|---|
(A) | Ozone gas | (1) | Combines with haemoglobin |
(B) | Nitrous oxide | (2) | Ultraviolet radiation |
(C) | Carbon dioxide | (3) | Component of air in small quantity |
(D) | Carbon monoxide | (4) | Visible radiation |
(5) | Infrared radiation |
`A-> 3, quad B-> 4, quad C->1, quad D->2`
`A-> 2, quad B-> 3, quad C->5, quad D->1`
`A-> 2, quad B-> 3, quad C->4, quad D->5`
`A-> 4, quad B-> 1, quad C->2, quad D->3`
Gaseous carbon dioxide
Liquid carbon dioxide
Solid carbon dioxide
Solid hydrogen oxide
1 and 2
2 and 3
Only 3
1 and 3
good conductor and soft
non-conductor and soft
non-conductor and hard
good conductor and hard
Assertion : Carbon can form more compounds than any other element.
Reason : Carbon can exist in various allotropes.
an analgesic
a fertilizer
a disinfectant
a purifier for water
allotropes
isomers
isotopes
isobars
1, 2, 3 and 4
2, 3 and 4
1 and 2
1, 3 and 4
Assertion : Diamond is a good conductor of electricity.
Reason : Diamond and graphite are two allotrope of carbon and graphite is a good conductor of electricity.
Only 1
Only 2
Both 1 and 2
Neither 1 nor 2
Silicones
Zeolites
Asbestos
Quartz
Purity of water
Ionising power of water
Polar nature of water
Dissolving power of water
Soot
Graphite
Diamond
Carborundum
It has small atomic radius
It has high electronegativity
It has high dissociation energy
It has stable electronic configuration
`N_2O`
`NO`
`N_2O_5`
`NO_2`
A rigid structure
Low viscosity
Layered structure
Low melting point
A rigid structure
Low viscosity
Layered structure
Low melting point