Options:
- A. Metallic character
- B. Electronegativity
- C. Oxidizing power
- D. Tendency to get reduced
View Answer
A. Metallic character
Chemistry
Addition of 2nd electron to a uni negative ion is always____________________?
Options:
- A. Exothermic
- B. Endothermic
- C. Data is insufficient
- D. Unpredictable
View Answer
B. Endothermic
Essential amino acids are___________________?
Options:
- A. 5
- B. 10
- C. 15
- D. 20
View Answer
B. 10
The aliphatic monocarboxylic acids are obtained by the hydrolysis of________________?
Options:
- A. proteins and oild
- B. fats and proteins
- C. fats and oils
- D. all above
View Answer
C. fats and oils
Oxidation of primary alcohol gives________________?
Options:
- A. ketone
- B. Aldehyde
- C. Alkene then
- D. Ester
View Answer
B. Aldehyde
Formalin consists of mixture of formaldehyde methyl alcohol and water Percentage of water in it is________________?
Options:
- A. 60%
- B. 50%
- C. 52%
- D. 8%
View Answer
C. 52%
Crystals of Na2CO3. 10H2O when exposed to air_________________?
Options:
- A. Lose water and remain solid
- B. Gain water and remain solid
- C. Gain water and become liquid
- D. Remains unchanged
View Answer
A. Lose water and remain solid
The ore CaSO4.H2O has the general name_______________?
Options:
- A. Gypsum
- B. Dolomite
- C. Calcite
- D. Plaster of Paris
View Answer
A. Gypsum
How many moles of H2 are added up when benzene is heated with hydrogen in the presence of platinum ?
Options:
- A. Two
- B. Three
- C. Four
- D. Six
View Answer
B. Three
ppm means________________?
Options:
- A. parts of solute in 1000 parts of solvent
- B. parts of solvent in 1000 parts of solute
- C. parts of solute in one million parts of solution
- D. parts of solvent in one million parts of solute
View Answer
C. parts of solute in one million parts of solution