Download App

Environmental Chemistry — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryEnvironmental Chemistry1 Mark
MCQ
When organic substances undergo anaerobic degradation, the product mainly formed is :
  • A
    $\ce{CO_2}$
  • B
    $\ce{H_2​S}$
  • ✓
    $\ce{CH_4}$​
  • D
    $\ce{NO}$
✓

Answer

Correct option: C.
$\ce{CH_4}$​
Anaerobic biodegradation is the process of degrading compounds by microorganisms in the absence of oxygen. In this process, methane forms as the main product.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Environmental Chemistry→Environmental Chemistry — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Which among the following factors is the most important in making fluorine, the  strongest oxidising halogen ?
→
Which one of the following shows optical activity
→
Vapour density of a gas is $22$. What is its molecular mass
→
$2 \mathrm{MnO}_4^{-}+\mathrm{bI}^{-}+\mathrm{cH}_2 \mathrm{O} \rightarrow \mathrm{xI}_2+\mathrm{yMnO}_2+\mathrm{zOH}^{-}$

If the above equation is balanced with integer coefficients, the value of $z$ is____

→
Acid precipitation is now regarded as a serious problem in some European and Asian countries. Its major cause or source is :
→
Some solid $N{H_4}HS$ is placed in a flask containing $0.5\, atm$ of $N{H_3}$, what would be pressures of $N{H_3}$ and ${H_2}S$ when equilibrium is reached $N{H_4}H{S_{(g)}}$ $\rightleftharpoons$ $N{H_{3(g)}} + {H_2}{S_{(g)}}$, ${K_p} = 0.11$
→
$116\, g$ of a substance upon dissociation reaction, yields $7.5 \,g$ of hydrogen, $60 \,g$ of oxygen and $48.5\, g$ of carbon. Given that the atomic masses of $H , O$ and $C$ are $1,16$ and $12$ respectively. The data agrees with how many formulae of the following?

$(A)$ $CH _{3} COOH$

$(B)$ $HCHO$

$(C)$ $CH _{3} OOCH _{3}$

$(D)$ $CH _{3} CHO$

→
An ionic compound $A^+ B^-$ is most likely to be formed when
→
Which of the following subatomic particle is lightest?
→
Normality of $2\,M$ sulphuric acid is
→