Nitro-aromatic compounds found in the environment are known as which of the following?

Nitro-aromatic compounds found in the environment are known as which of the following? Correct Answer Recalcitrant

Nitro-aromatic compounds are formed by incomplete combustion and hence, they are persistent in the environment called as Recalcitrant. Whereas, molecular oxygen that is found in the environment helps to degrade plant and animal biomass into carbon dioxide and water, Oxygen and Carbon are not called as recalcitrant.
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With reference to ionic compounds, consider the following statements.
1. Ionic compounds are insoluble in alcohol.
2. Ionic compounds in the solid state are a good conductor of electricity.
Which of these statements is/are correct?
With reference to ionic compounds, consider the following statements.
1. Ionic compounds are insoluble in alcohol.
2. Ionic compounds in the solid state are good conductor of electricity.
Which of the statement given above is/are correct?
Lucas test was conducted on three compounds A, B and C. Compounds A and B showed turbidity at room temperature, but compound C became turbid only after heating. Which of the compounds has a tertiary structure?
Which of the following statements about open systems as given by Daniel Katz and Robert Khan are true?
1. The exportation of energic inputs into the environment.
2. Transformation of available energy as through put, so that work is done.
3. The importation of the output from the environment.
4. A cycle of events in which the product exported to the environment provides the energy for repetition of the cycle.
Four compounds A, B, C and D were heated individually with Tollen’s reagent. It was found that all compounds other than D formed a silver mirror on the inside of their test tubes. Identify the compound D.
You have a Windows NT 4.0 Workstation computer with an NTFS file system that you use for software development. As your company upgrades their systems to Windows 2000, you will need to be able to test applications in both the Windows NT Workstation environment and the Windows 2000 environment. You decide that the easiest course of action would be to install Windows 2000 Professional in a dual boot environment with Windows NT 4.0 Workstation on your computer. What should you do before installing Windows 2000 Professional?
A filament bulb produces 30 lux illumination at point A as shown in the figure. Assuming that no other source of lighting present in the roadway, the illumination level in lux at point B will be
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Assertion (A) The perceived risk of operating a domestic firm in international environment is much higher.
Reason (R) The international environment is more volatile and the domestic firm generally does not have full information about the environment.
Which of the following compounds are also known as aliphatic compounds?