Options:
- A. Surface tension
- B. Aqueous tension
- C. Vapour pressure
- D. Hydraulic pressure
View Answer
B. Aqueous tension
Chemistry
Rate expression for ammonia synthesis is___________________?
Options:
- A. Kc=x2/(a-x)(b-x)
- B. Kc=x2/v(a-x)
- C. Kc=4
- D. Kc=4x2v2/(a-x)(b-3x)3
View Answer
D. Kc=4x2v2/(a-x)(b-3x)3
Which of following is not a base______________?
Options:
- A. KOH
- B. NH3
- C. PH3
- D. BF3
View Answer
D. BF3
Which statement is wrong ?
Options:
- A. the amount of ozone layer is greater in the region close to the equator
- B. ozone acts as filter for UV radiations
- C. in the equatorial region it acts as pollutant
- D. CFCs play effective role in removing O3 in the stratosphere
View Answer
A. the amount of ozone layer is greater in the region close to the equator
Which of the following factors help to measure quallity of water ?
Options:
- A. DO
- B. BOD
- C. COD
- D. all of the above
View Answer
D. all of the above
The compounds in which water molecules are added are called_______________?
Options:
- A. Hydrated ions
- B. double salts
- C. hydrates
- D. complexes
View Answer
C. hydrates
Animal charcoal adsorbs the coloured_________________?
Options:
- A. impurities
- B. crystals
- C. solvents
- D. both A & B
View Answer
A. impurities
Silica gel and alumina are used as __________________?
Options:
- A. Mobile phase
- B. Stationary phase
- C. Mixed phase
- D. Single phase
View Answer
B. Stationary phase
Force responsible to hold atoms together in a compound is called ________________?
Options:
- A. Bond
- B. Attractive force
- C. Interaction
- D. All of above represent same entity
View Answer
A. Bond
Which of the following will have highest value of electron affinity_________________?
Options:
- A. F
- B. Cl
- C. Br
- D. I
View Answer
B. Cl