Diamond cannot be used
Diamond cannot be used A. In making bicycle chains B. As abrasives C. In cutting glass and metals…
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An example of an acidic oxide is
An example of an acidic oxide is A. NO B. CO C. SO2 D. CuO Correct Answer: Option…
The metal whose ore can be concentrated by passing it through a magnetic separator is
The metal whose ore can be concentrated by passing it through a magnetic separator is A. Zn B.…
Which of the following statements is correct about the periodic table?
Which of the following statements is correct about the periodic table? A. Elements in the same group have…
Which of the following is not an alkali?
Which of the following is not an alkali? A. Ca(OH)2 B. NH3 C. NaOH D. Al(OH)3 Correct Answer:…
Alkanols have the general molecular formula
Alkanols have the general molecular formula A. CnH2n-2 B. CnH2n+1CHO C. CnH2n-2OH D. CnH2n+1OH Correct Answer: Option D…
The products formed when primary Alkanols are oxidized using acidified potassium tetraoxomanganate (VII) are what?
The products formed when primary Alkanols are oxidized using acidified potassium tetraoxomanganate (VII) are what? A. CH3CH2CHO and H2O B.…
Cast iron is used in making
Cast iron is used in making A. Chains and agricultural implements B. Iron sheets and retort stand C.…
The compound produced when sodium peroxide is heated with excess sodium is
The compound produced when sodium peroxide is heated with excess sodium is A. Na2CO3 B. Na2O C. NaNO2…
The pollutant that contributes to the depletion of the ozone layer is
The pollutant that contributes to the depletion of the ozone layer is A. CFCs B. NO2 C. SO2…