Options:
- A. Ethanal
- B. Acetone
- C. Benzaldehyde
- D. Butanone
View Answer
C. Benzaldehyde
Chemistry
When CO2 is made to react with ethy1 magnesium iodide in dry ether followed by acid hydrolysis yields______________?
Options:
- A. Carboxylic acid
- B. Ethanoic acid
- C. Propanoic acid
- D. Butanoic acid
View Answer
C. Propanoic acid
Ethy1 chloride on reduction in the presence of Zn/HCI produces___________________?
Options:
- A. n. butane
- B. Ethanol
- C. Ethane
- D. Diethy1 ether
View Answer
C. Ethane
For industrial preparation of CH3CHO catalytic promoter is_________________?
Options:
- A. PdCl2
- B. Cu2Cl2
- C. CuCl2
- D. PbCl2
View Answer
B. Cu2Cl2
Which of the following is not a fatty acid ?
Options:
- A. Propanoic acid
- B. Acetic acid
- C. Phthalic acid
- D. Butanoic acid
View Answer
C. Phthalic acid
Which one of the following fertilizers provides the nitrogen and phosphorus to the plant ?
Options:
- A. Urea
- B. Calcium superphosphate
- C. Diammonium phosphate
- D. Potassium nitrate
View Answer
A. Urea
Which of the following solution has the highest boiling point ?
Options:
- A. 5.85% NaCl Solution
- B. 18.0 % glucose solution
- C. 6.0 % urea solution
- D. All have same boiling point
View Answer
A. 5.85% NaCl Solution
Chlorination of water may be harmful if the water contains_________________?
Options:
- A. Ammonia
- B. Dissolved oxygen
- C. Carbon dioxide
- D. All
View Answer
C. Carbon dioxide
Which of the following can be used in laptops ?
Options:
- A. Silver oxide battery
- B. Fuel cell
- C. Nickel cadmium cell
- D. Lead accumulator
View Answer
C. Nickel cadmium cell
The mass of one mole of electron is________________?
Options:
- A. 1.008
- B. 0.55
- C. 0.184
- D. 1.637
View Answer
B. 0.55