Chemistry

Which of the following is not an alkali?

A. Ca(OH)2 B. NH3 C. NaOH D. Al(OH)3 Correct Answer: Option D - Al(OH)3 Explanation Al(OH)3 is not generally an…

5 years ago

Alkanols have the general molecular formula?

A. CnH2n-2 B. CnH2n-1CHO C. CnH2n-2OH D. CnH2n+1OH Correct Answer: Option D - CnH2n+1OH

5 years ago

The product formed when propanol is heated over a copper catalyst in the absence of oxygen are?

A. CH3CH2CHO and H2 B. CH3CHO and CO2 C. CH3CH2COOH and H2 D. CH3COOH and CO2 Correct Answer: Option D…

5 years ago

Which of the following compounds is can serves as a gaseous fuel ____?

A. CH3 -CH2 -CHO2 -COOH B. CH3 -C = CH C. CH3 -CH2 -CH2 -CH3 D. CH3 -CHOH -CH3 Correct…

5 years ago

Cast iron is used in making?

A. Chains and agricultural implements B. Iron sheets and retort stand C. Nails and iron rods D. Stoves and cookers…

5 years ago

Which of the following properties is not peculiar to matter?

A. Kinetic energy of particles increases from solid to gas B. Random motion of particles increases from gas to solid…

5 years ago

The pollutant that contributes to the depletion of the ozone layer is?

A. CFCs B. NO2 C. SO2 D. CO Correct Answer: Option A - CFCs

5 years ago

The compound produced when sodium peroxide is heated with excess sodium is?

A. Na2CO3 B. Na2O C. NaNO2 D. NaOH Correct Answer: Option B - Na2O

5 years ago

The radioisotope used in industrial radiography for the rapid checking of faults in welds and casting is?

A. Phosphorus-32 B. Cobalt-60 C. Carbon-14 D. Iodine-131 Correct Answer: Option B - Cobalt-60

5 years ago

What is the concentration of a solution containing 2g of NaOH in 100cm³ of solution? [Na=23, O=16, H=1]

A. 0.05 moldm-³ B. 0.30 moldm-³ C. 0.50 moldm-³ D. 0.40 moldm-³ Correct Answer: Option C - 0.50 moldm-³ Explanation…

5 years ago