Options:
- A. tetrahedral
- B. square planar
- C. trigonal bipyramidal
- D. octahedral
View Answer
D. octahedral
Chemistry
Nucleic acids were first demonstrated in_________________?
Options:
- A. Pus cells
- B. Sperm heads
- C. 1872
- D. all of the above
View Answer
A. Pus cells
Nucleic acids direct the synthesis of__________________?
Options:
- A. Glucose
- B. Triglycerides
- C. Proteins
- D. All
View Answer
C. Proteins
Which of the following is incorrect statement about nitrogen importance ?
Options:
- A. It enhances plant growth
- B. It is involved in the synthesis of protein and nucleic acids
- C. it accelerates fruits and flowers growth
- D. It is involved in the chlorophyll synthesis
View Answer
C. it accelerates fruits and flowers growth
Spontaneous reactions are_______________?
Options:
- A. Moderate
- B. Slow
- C. Fast
- D. not natural
View Answer
C. Fast
The addition of a catalyst to the reaction system__________________?
Options:
- A. Increases the rate of forward reaction only
- B. Increases the rate of reverse reaction
- C. Increases the rate of forward but decreases the rate of backward reaction
- D. Increases the rate of forward as well as backward reaction equally
View Answer
D. Increases the rate of forward as well as backward reaction equally
Elements in the same vertical group of the periodic table have same_______________?
Options:
- A. Number of valence electrons
- B. Atomic number
- C. Atomic mass
- D. Atomic volume
View Answer
A. Number of valence electrons
In electrolytic cell electricity carries________________?
Options:
- A. spontaneous reaction
- B. non-wpontaneous reaction
- C. neutralization
- D. all of above
View Answer
B. non-wpontaneous reaction
Which of the following element act as inert electrode________________?
Options:
- B. Ag
- C. Pt
- D. None
View Answer
C. Pt
Density of H2SO4 in lead accumulator is__________________?
Options:
- A. 1.25g/cm3
- B. 1.3g/cm3
- C. 1.20g/cm3
- D. 1.15g/cm3
View Answer
A. 1.25g/cm3