Our website is made possible by displaying online advertisements to our visitors. Please consider supporting us by whitelisting our website.

Author name: admin

CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of chlorine liberated from CFC is capable of decomposing __________ molecules of ozones.

CHEMICAL ENGINEERING, Environmental Engineering /
Question: CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of chlorine liberated from CFC is capable of decomposing __________ molecules of ozones.
[A].

102

[B].

105

[C].

109

[D].

1015

Answer: Option B

Explanation:

No answer description available for this question.

CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of chlorine liberated from CFC is capable of decomposing __________ molecules of ozones. Read More »

CHEMICAL ENGINEERING, Environmental Engineering

Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by

CHEMICAL ENGINEERING, Environmental Engineering /
Question: Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by
[A].

chemical coagulation

[B].

floatation & skimming

[C].

centrifugation

[D].

ultrafiltration

Answer: Option A

Explanation:

No answer description available for this question.

Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by Read More »

CHEMICAL ENGINEERING, Environmental Engineering

Which of the following pollutants, if present in atmosphere is detectable by its odour ?

CHEMICAL ENGINEERING, Environmental Engineering /
Question: Which of the following pollutants, if present in atmosphere is detectable by its odour ?
[A].

CO

[B].

SO2

[C].

NO2

[D].

CO2

Answer: Option B

Explanation:

No answer description available for this question.

Which of the following pollutants, if present in atmosphere is detectable by its odour ? Read More »

CHEMICAL ENGINEERING, Environmental Engineering

As per the world health organisation (WHO) specification, the maximum permissible concentration (i.e., TLV) of particulate matter in air is __________ μg/m3.(μg-microgram)

CHEMICAL ENGINEERING, Environmental Engineering /
Question: As per the world health organisation (WHO) specification, the maximum permissible concentration (i.e., TLV) of particulate matter in air is __________ μg/m3.(μg-microgram)
[A].

10

[B].

90

[C].

800

[D].

750

Answer: Option B

Explanation:

No answer description available for this question.

As per the world health organisation (WHO) specification, the maximum permissible concentration (i.e., TLV) of particulate matter in air is __________ μg/m3.(μg-microgram) Read More »

CHEMICAL ENGINEERING, Environmental Engineering

A considerable part of the harmful ultraviolet radiation of the sum does not reach the earth surface, because of the fact that, there is a layer of __________ high above earth’s atmosphere, which absorbs it.

CHEMICAL ENGINEERING, Environmental Engineering /
Question: A considerable part of the harmful ultraviolet radiation of the sum does not reach the earth surface, because of the fact that, there is a layer of __________ high above earth’s atmosphere, which absorbs it.
[A].

hydrogen

[B].

carbon dioxide

[C].

ozone

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.

A considerable part of the harmful ultraviolet radiation of the sum does not reach the earth surface, because of the fact that, there is a layer of __________ high above earth’s atmosphere, which absorbs it. Read More »

CHEMICAL ENGINEERING, Environmental Engineering