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Which of the following is not correct regarding the decomposition of wastes?
Identify the correct set of statements with regard to the properties of humus.
Detritivores breakdown detritus into smaller particles. This process is called:
Given below are two statements: Statement I: Decomposition is a process in which the detritus is degraded into simpler substances by microbes. Statement II: Decomposition is faster if the detritus is rich in lignin and chitin. In light of the above statements, choose the correct answer from the options given below:
Identify the correct statements: A: Detrivores perform fragmentation. B: The humus is further degraded by some microbes during mineralization. C: Water soluble inorganic nutrients go down into the soil and get precipitated by a process called leaching. D: The detritus food chain begins with living organisms. E: Earthworms break down detritus into smaller particles by a process called catabolism. Choose the correct answer from the options given below:
In the equation GPP - R = NPP, where GPP is Gross Primary Productivity and NPP is Net Primary Productivity, R here is ___________
Which one of the following is not a limitation of ecological pyramids?
Consider the pyramid of energy of an ecosystem given below : If T4 is equivalent to 1000 J, what is the value of T1?
Given below are half cell reactions: $MnO_4^- + 8H^+ + 5e^- \rightarrow Mn^{2+} + 4H_2O$ ($E^o = 1.51 V$); $2H_2O \rightarrow O_2 + 4H^+ + 4e^-$ ($E^o = -1.23 V$). Will the permanganate ion, $MnO_4^-$, liberate $O_2$ from water in the presence of an acid?
In one molal solution that contains 0.5 mole of a solute, there is
What is Y in the above reaction?
Which amongst the following is incorrect statement? (1) The bond orders of $NO^+$, $NO$, $NO^-$ and $O_2^-$ are 2.5, 2, 1.5 and 1, respectively (2) $C_2$ molecule has four electrons in its two degenerate $\pi$ molecular orbitals (3) $He_2^+$ ion has one electron (4) $O_2^-$ ion is diamagnetic
Given below are two statements: Statement I: In Lucas test, primary, secondary and tertiary alcohols are distinguished on the basis of their reactivity with conc. $HCl + ZnCl_2$, known as Lucas Reagent. Statement II: Primary alcohols are most reactive and immediately produce turbidity at room temperature on reaction with Lucas Reagent. In the light of the above statements, choose the most appropriate answer from the options given below:
The pH of the solution containing 50 mL each of 0.10 M sodium acetate and 0.01 M acetic acid is [Given pK_a of CH_3COOH = 4.57]
For a first order reaction $A \rightarrow \text{Products}$, initial concentration of $A$ is $0.1 \text{ M}$, which becomes $0.001 \text{ M}$ after $5 \text{ minutes}$. Rate constant for the reaction in $\text{min}^{-1}$ is
A 10.0 L flask contains 64 g of oxygen at 27°C. (Assume $O_2$ gas is behaving ideally). The pressure inside the flask in bar is (Given $R = 0.0831$ L bar $K^{-1} mol^{-1}$)
Match the following products formed in List-I with the reaction of carbonyl compound in List-II: List-I (Products formed): (a) Aldol, (b) Iodoform, (c) Oxime, (d) 2,4-DNP. List-II (Reaction of carbonyl compound with): (i) I_2 + OH^-, (ii) 50% NaOH, (iii) NH_2OH, (iv) 2,4-DNP.
Copper crystallises in fcc unit cell with cell edge length of $3.608 \times 10^{-8}$ cm. The density of copper is $8.92$ g cm$^{-3}$. Calculate the atomic mass of copper.
What is incorrect about ecosystem?
Given below are two statements Statement I: The rate of decomposition is not related to chemical composition of detritus and climatic factors. Statement II: In a particular climatic condition, decomposition rate is faster if detritus is rich in lignin and chitin. In light of the above statements, choose the correct answer from the options given below: