General Science - Online Test
Q1. Negative acceleration phase is caused due to
Answer : Option B
Explaination / Solution:
Negative acceleration phase is caused due to increase in environmental resistance. An environment have limited amount of resources after reaching climax phase negative acceleration occurs.
Q2. Element present in middle lamella
Answer : Option C
Explaination / Solution:
Calcium is required by meristematic and differentiating tissues. During cell division it is used in the synthesis of cell wall, particularly as calcium pectate in the middle lamella.
Q3. Bacteria responsible for chronic gastritis is :
Answer : Option D
Explaination / Solution:
Chronic gastritis involves swelling or inflammation of the stomach lining. Helicobacter pylori colonizes the stomach and induces chronic gastritis, a long-lasting inflammation of the stomach.
Q4. Ovary develops into fruit which develops a thick protective wall called
Answer : Option C
Explaination / Solution:
After fertilisation ovule changes into seeds and ovary itself change into fruits. The outer hard integuments of ovary form protective layer of fruit called pericarp followed by mesocarp and endocarp.
Q5. A lamp and a screen are set up 100 cm apart and a convex lens is placed between them. The two positions of the lens forming real images on the screen are 40 cm apart. What is the focal length of the lens ?
Answer : Option B
Explaination / Solution:
No Explaination.
Q6. The polymer with the amide linkage is
Answer : Option D
Explaination / Solution:
Nylon has amide linkage.
Q7. The decomposition of hydrogen peroxide to form water and oxygen is an example of
Answer : Option C
Explaination / Solution:
Oxidation number of O in is -1 and it is decreasing to -2 to and increases to 0 in
Oxidation number of O in is -1 and it is decreasing to -2 to and increases to 0 in
Q8. Antigen binding site in an antibody is found between
Answer : Option C
Explaination / Solution:
The antigen-binding (Fab) fragment is a region on an antibody that binds to antigens. It is composed of one constant and one variable domain of each of the heavy and the light chain.
Q9. MgO has the structure of NaCl. The coordination number of the ions in MgO is
Answer : Option D
Explaination / Solution:
Coordination No. in NaCl is 6.
Q10. All attainable combinations will lie
Answer : Option C
Explaination / Solution:
A production possibilities frontier (PPF) is a diagram that illustrates the possible production points for an economy based on its resources and technology.Production points on a PPF are possible and efficient. Production points on a PPF represent efficient use of all of the economy’s resources.
