General Science - Online Test
Q1. All are inorganic pollutants except
Answer : Option D
Explaination / Solution:
Inorganic Pollution are things found naturally but because of human production of goods have been altered to drastically increase the amount of them in the environment (some examples include arsenic, lead, as well as many different air pollutants). Examples of Inorganic Pollution: Lead, Zinc, Copper, Cadmium.
Motor oil is an organic pollutant.
Q2. One of the following p-block elements has unusually low melting point
Answer : Option B
Explaination / Solution:
Ga does not do not follow any of the simple crystal structures. And two nearest Ga atoms are bonded by covalent bond which leads to low melting point.
Q3. Economics that deals with economic problems as a whole are called
Answer : Option C
Explaination / Solution:
No Explaination.
Q4. A point charge q = -8.0 nC is located at the origin. Magnitude of the electric field vector at the field point x = 0.949m y = -1.643m is
Answer : Option C
Explaination / Solution:
Given x= 0.949m and y= -1.643 m So
Q5. What's the difference between genetic drift and change due to natural selection?
Answer : Option A
Explaination / Solution:
Genetic drift and change due to natural selection are different as genetic drift does not involve completion between the members of a species but in natural selection there is completion between members.
Q6. In human female, menstruation can be deferred by the administration of
Answer : Option D
Explaination / Solution:
Menstruation can be deferred by the administration of combination of hormone estrogen and progesterone. Follicle stimulating hormone and luteinizing hormone are produced during ovulation.
Q7. A parallel plate air filled capacitor shown in Fig. (a) has a capacitance of 2 . When it is half filled with a dielectric of dielectric constant k= 3 as shown in Fig. (b), its capacitance becomes
Answer : Option B
Explaination / Solution:
The capacitance of the first capacitor The second capacitor is considered to be made of two capacitors ( air filled) and ( dielectric) connected in parallel.
Q8. What is the purpose of the Human Genome Project?
Answer : Option C
Explaination / Solution:
The Human Genome Project was an international research effort to provide a complete and accurate sequence of the 3 billion DNA base pairs that make up the human genome and to find all of the estimated 20,000 to 25,000 human genes.
The Project was coordinated by the National Institutes of Health and the U.S. Department of Energy.
Q9. Beginning of menstrual cycle is called as
Answer : Option D
Explaination / Solution:
At puberty, menstrual cycle begins in girls. The beginning of menstrual cycle is called menarche. It starts at the age of about 12 to 13 years in girls.
Q10. Which of the following p-block elements in group 13 could exist in liquid state during summer
Answer : Option C
Explaination / Solution:
Ga has very low melting point (MP = 29.76oC), and because of that it can exists in liquid state during summer.
