General Science - Online Test
Q1. Dmitri Mendeleev (1834-1907) and the German chemist, Lothar Meyer (1830-1895) proposed arranging elements in
Answer : Option C
Explaination / Solution:
If the elements are arranged in the order of their increasing atomic weights, after a regular interval similiar properties of elements are repeated.
Q2. Macromolecules are one of the following
Answer : Option A
Explaination / Solution:
Polymers are higher molecular weight macromolecules.
Q3. Work done by a uniform electric field E in moving a charge q a distance d from a to b is
Answer : Option A
Explaination / Solution:
Force and the work done
Q4. Transport of water and mineral in plants take place through
Answer : Option C
Explaination / Solution:
Transport of water and mineral in plant take place through xylem tissue present in vascular bundles. Vessels and tracheids are main water conducting elements of xylem.
Q5. Elements having +5 oxidation state is
Answer : Option D
Explaination / Solution:
The maximum oxidation state shown by a p-block element is equal to
the total number of valence electrons (i.e., the sum of the s and
p-electrons).
Q6. Thermodynamics is the branch of physical science concerned with
Answer : Option A
Explaination / Solution:
Thermodynamics deals with heat and its transformation from one form to another.
The branch of physical science that deals with the relations between heat and other forms of energy (such as mechanical, electrical, or chemical energy), and, by extension, of the relationships between all forms of energy.
Q7. The basic property of a fluid that makes it different from solids
Answer : Option C
Explaination / Solution:
fluids can flow due to unbalanced forces between the atoms of fluids.
Q8. Where is ciliated epithelium found in human body?
Answer : Option D
Explaination / Solution:
The ciliated epithelium is mainly present in the inner surface of hollow organs like bronchioles and fallopian tubes.
Q9. The five kingdom classification was proposed by
Answer : Option A
Explaination / Solution:
Five kingdom classification was proposed by R.H. Whittaker in 1969. The kingdoms identified by him were Monera, Protista,Fungi, Plantae and Animalia.
Q10. Which of the following is not a mixed/composite gland?
Answer : Option A
Explaination / Solution:
A gland that contain both exocrine and endocrine portion is called mixed or composite gland. These glands secretes both hormone and enzymes. Pineal gland is an example of endocrine gland.
