Biochemical Oxygen Demand, (BOD) is a measure of organic material present in water. BOD value less than 5ppm indicates a water sample to bee__________

Question

Biochemical Oxygen Demand, (BOD) is a measure of organic material present in water. BOD value less than 5ppm indicates a water sample to bee__________

Biochemical Oxygen Demand, (BOD) is a measure of organic material present in water. BOD value less than 5ppm indicates a water sample to bee__________
A. rich in dissolved oxygen
B. poor in dissolved oxygen.
C. highly polluted.
D. not suitable for aquatic life.

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Related Questions

From a container having 64 g Oxygen, `11.2L` Oxygen gas at STP and `6.022xx10^(23)` Oxygen atoms are removed. Find the mass of the oxygen gas left :

2 Answers 4 Views

If `[.]` denotes the greatest integer less than or equal to x and (.) denotes the least integer greater than or equal to x, then domain of the functio

1 Answers 4 Views

The electron gain enthalpy with negative sign for oxygen `(-141 Kj mol^(-1))` is less than of sulphur `(-200 kJ mol^(-1)` Or The value of electron gai

1 Answers 4 Views

A higher biochemical oxygen demad in a particular segment of a river indicates that

2 Answers 4 Views

A sample of clay contains 60% Silica & 15 % water. The sample is heated such that the partially dried sample contains 66% Silica. What will be % of wa

2 Answers 5 Views

A block of ice on earth floats on water with 9//10 of its volume submerged. Statement-1: On moon the block of ice would float on water with less than

2 Answers 4 Views

The value of adiabatic constant `gamma` for oxygen and nitrogen is same. The speed of sound in oxygen is 470 m/s at STP. The speed of sound in nitroge

2 Answers 4 Views

On electrolysis of a sample of acidified water, `22.4` ml of hydrogen was obtained. The volume of oxygen in ml obtained is

2 Answers 6 Views

3. The formula of Plaster of Paris is \( CaSO _{4} .1 / 2 H _{2} O \), it is to be noted that half water molecule is shown to be attached as water of crystallisation. This indicates that A. Only half water molecule is present in Calcium Sulphate crystal B. Two formula units of Calcium Sulphate share one molecule of water. C. Two formula units of calcium Sulphate share two molecules of water D. Two formula units of Calcium Sulphate share one and a half molecules of water.

2 Answers 4 Views

Light of wavelength A which is less than threshold wavelength is incident on a photosensitive material. If incident wavelength is decreased so that em

2 Answers 4 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - D
`CuSdarr+H_(2)Orarr"No reaction"`
`Fe_(2)S_(3)+H_(2)OrarrFe^(2+)(aq)+Sdarr`
`Cr_(2)S_(3)+H_(2)OrarrCr(OH)_(3)darr+ H_(2)Suarr`
`MgS+H_(2)OrarrMg(OH)_(2)darr+H_(2)Suarr`

4 views Answered 2023-02-05 15:29