General Science - Online Test
Q1. An empirical formula represents the simplest
Answer : Option C
Explaination / Solution:
In chemistry the empirical formula of a compound is the simplest positive integer ratio of atoms present in a compound.
However ,this differs from the chemical formula which expresses the number of atoms in each molecule of a compound ..
An empirical formula makes no mention of the arrangement of atoms in a compound.
It is standard for many ionic compounds like CaCl2 or for macro - molecules such as silicates etc.
Q2. If D2 = 0 rank correlation is
Answer : Option D
Explaination / Solution:
If it is so then the fraction part will be zero and when zero is subtracted from1 we will get 1.
Q3. The aim is to provide food grains at highly subsidized rates to poor families
Answer : Option D
Explaination / Solution:
Antyodaya Anna Yojana (AAY) is a Government of India sponsored scheme to provide highly subsidised food to millions of the poorest families. It was launched by the [NDA] government on 25 December 2000 and first implemented in the Indian State of Rajastan.
Q4. Identify the algae present in the figure
Answer : Option C
Explaination / Solution:
The algae present in the figure is Chlamydomonas which is a unicellular algae present in fresh water. Two flagella is attached to it that helps in the movement in water.
Q5. Tubulin occurs in
Answer : Option B
Explaination / Solution:
Tubulin is a kind of protein which is present in the cilia and flagella of cells having it. It provide flexibility of the cilia and flagella.
Q6. Direct personal investigation method is suitable where ___________
Answer : Option B
Explaination / Solution:
An investigator can keep the informaion secretly and , also, can help the respondent to understand the questions in a better way, through direct personal investigation.
Q7. Ozone layer prevents most harmful wavelengths of ______ light from passing through the earth’s atmosphere
Answer : Option B
Explaination / Solution:
No Explaination.
Q8. In DNA, sugar is attached to nitrogenous base (purine or pyrimidine) through
Answer : Option D
Explaination / Solution:
In DNA, sugar and nitrogenous base are attached with each other through glycosidic bond. Phosphate and next sugar with Phosphodiester linkage and purine and pyrimidine with hydrogen bonds.
Q9. In a meter bridge experiment a balance point is obtained at a distance of 60 cm from the left end when unknown resistance R is in a left gap and 8 ohms resistor is connected in the right gap. When the position of R and 8 ohm resistor is interchanged the balance point will be at distance of
Answer : Option A
Explaination / Solution:
The balance point when 8Ω is in the left gap will be 40 cm.
Q10. The damped system differential equation is
Answer : Option B
Explaination / Solution:
The forces on the system is restoring force and the damping force is where 'k' is the force constant and 'b' is the damping constant
The net force is F= m*a which is equal to the sum of restoring force and the damping force is
