chem quiz

Student X was reading about acid rain , she read that

it is caused by atmospheric pollutants such as __A__ .

and it contains _B_ ,her friend said that the its ph is 5.3 to 2.5.Is she correct?

• A-SO2,NH3

  B-H2SO4

  C-no

• A-N2,CO2

  B-H2SO3,HNO2

  C-yes

• A-SO2,N2

  B-HNO3,

  C-no

• A-N2,SO2

  B-HNO3,H2SO4

  C-yes

burning of fossil fuels , decay of organic matter and volcanic eruptions .what do they have in common.

• they are bad for the environment

• they release CO2

• they release SO2

• they release NO2

Ultraviolet radiation from the sun causes a reaction which produces gas __A__ which is pale blue in color and has a distinct smell. This reaction is called __X__.

• A-O2

  X-photochemical cleavage

• A-O3

  X-Photochemical dissociation

• A-O2

  X-photodissociation

• A-O3

  X-Photolysis

WHICH OF THE FOLLOWING POLLUTANTS ARE NOT HARMFUL TO THE LUNGS ?co is hazardous to which part of your body?

• A-CO2(Not conc.)

  B-lungs

• A-CO2(Not conc.)

  B-hemoglobin

• A-CO

  B-hemoglobin

• A-CO

  B-lungs

what does radiation from the sun consist of ?what is the disadvantage of using solar energy?

• alpha particles

  difficult to obtain as sunlight is not available everywhere and every time

• visible light

  difficult to collect and convert into usable form

• cosmic and gamma rays

  difficult to store and transport

a catalytic convertor in internal combustion engines

• increases particulate matter

• promotes ozone layer depletion

• contributes to acid rain

• helps reduce pollution

which gas is responsible for the bleaching of taj mahal?

• ozone

• methane

• so2

• co2

who discovered ozone?the dobson unit is used to measure=b

• a)charles fabry

  b)height of O3

• a)G dobson

  b)height of ozone

• a)charles fabry

  b)density of ozone

• a)Gdobson

  b)density of O3

statement A-methane ,water vapour and CO2 are known as greenhouse gases.

statement B-ph of pure water is 6.2

• A-True

  B-True

• A-false

  B-true

• A-true

  B-False

• A-false

  B-true

geographical impact of greenhouse gases=

• coastal flooding

• soil erosion

• tropical regions experience more rainfall

• increases transpiration