General Science - Online Test
Q1. The most abundant element found in plants is
Answer : Option A
Explaination / Solution:
Carbon is generally present in plant tissues in large amounts and mainly obtained from CO2 and H2O.
Q2. Regurgitation is more common in infants than in adults. The reason will be:
Answer : Option C
Explaination / Solution:
Regurgitation is the expulsion of material from the pharynx, or esophagus, usually characterized by the presence of undigested food or blood. Regurgitation is used by a number of species to feed their young. Regurgitation is more common in infants than adults because cardiac sphincter is much less effective in infants.
Q3. Self-pollination is transfer of pollen from anther to stigma of
Answer : Option B
Explaination / Solution:
The transfer of pollen grain from anther to stigma of same flower is called self-pollination. Both anther and stigma must be ready at same time for this kind of pollination.
Q4. A convex lens forms a real image of an object on a screen; the magnification of the image being 3/2. The object and the screen are kept fixed and the lens is moved through a distance of 16 cm when a sharp image is again formed on the screen; the magnification now being 2/3. What is the focal length of the lens?
Answer : Option B
Explaination / Solution:
No Explaination.
Q5. The electron releasing tendency of the metals, zinc, copper and silver is in the order:
Answer : Option A
Explaination / Solution:
The electron releasing tendency of the metals, zinc, copper and silver is in the order Zn>Cu>Ag
This is according to the metal activity series or electrochemical series.
Q6. One of the following is used in speciality packaging, orthopaedic devices and in controlled release of drugs
Answer : Option A
Explaination / Solution:
PHBV is used in speciality packaging.
Q7. A metastatic cancerous tissue is termed ‘sarcoma’ if the disorder is in
Answer : Option A
Explaination / Solution:
A metastatic cancerous tissue is called sarcoma if the disorder is in fibroblast. The property of cancerous cells to reach from one part of the body to other through blood is called metastasis.
Q8. All unattainable combinations will lie
Answer : Option D
Explaination / Solution:
Points outside the PPF are unattainable production points given current resources and technologies. It is impossible for an economy to produce outside its PPF. The PPF can change, however, with changes in resources or technology.
Q9. A transition metal ion exists in its highest oxidation state. It is expected to behave as
Answer : Option B
Explaination / Solution:
If the metal is at its highest oxidation state, then it will have no desire to loose more electrons. It will have the tendency to gain electron, and go to a lower oxidation state, i. e. it behaves like an oxidizing agent.
Q10. What happens to AR when MR is zero
Answer : Option A
Explaination / Solution:
No Explaination.
