Methemoglobinemia ('blue baby' syndrome) disease is associated with

  • A
    Excess nitrate in drinking water
  • B
    Excess lead in drinking water
  • C
    Excess fluoride in drinking water
  • D
    Less phosphate in drinking water

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Similar Questions

Which among the following statements is $NOT$ true according to the principles of green chemistry?

Fill in the blanks:
$(1)$ The substance that spreads pollution is called .......
$(2)$ The full form of $DDT$ is .......
$(3)$ The area from $10 \ km$ to $50 \ km$ above sea level is called .........
$(4)$ Harmful ultraviolet radiation from the sun reaching the earth is blocked by .....

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Match the activities given in List-$I$ with the pollution produced in List-$II$.
List-$I$ List-$II$
$(A)$ Burning sulfur-containing waste releases gases into the atmosphere. $(1)$ Water pollution
$(B)$ Use of carbonates as pesticides $(2)$ Photochemical smog,damage to plant life,corrosion of buildings,respiratory problems,water pollution.
$(C)$ Using synthetic detergents for washing clothes $(3)$ Damage to the ozone layer
$(D)$ Releasing smoke from vehicles and factories into the atmosphere. $(4)$ Neurological disorders in humans.
$(E)$ Using chlorofluorocarbon compounds to clean computer parts. $(5)$ Classical smog,acid rain,water pollution,respiratory problems,damage to buildings,metal corrosion.

Determine whether the following statements are true or false:
$(1)$ The lowest region of the atmosphere where all living organisms,including humans,reside is called the troposphere.
$(2)$ The troposphere extends up to a distance of $25 \ km$ from sea level.
$(3)$ The region between $10 \ km$ and $50 \ km$ from sea level is called the stratosphere.
$(4)$ The ozone layer that protects living organisms is located in the troposphere.

Match List-$I$ with List-$II$ :
List-$I$ (Species) List-$II$ (Maximum allowed concentration in ppm in drinking water)
$A$. $F^{-}$ $I$. $< 50 \, ppm$
$B$. $SO_{4}^{2-}$ $II$. $< 5 \, ppm$
$C$. $NO_{3}^{-}$ $III$. $< 2 \, ppm$
$D$. $Zn$ $IV$. $< 500 \, ppm$

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