General Science - Online Test
Q1. Match the following :
a) Fibrous joint
b) Hinge joint
c) Ball and socket joint
d) Ellipsoid joint
(i)
(ii)
(iii)
(iv)
a) Fibrous joint
b) Hinge joint
c) Ball and socket joint
d) Ellipsoid joint
(i)
(ii)
(iii)
(iv)
Answer : Option C
Explaination / Solution:
Fibrous joint is present in skull bone, hinge joint is present in knee, ball and socket joint is present in shoulder and forelimb and ellipsoid joint is present in wrist of human beings.
Q2. Arrange the following compounds in order of increasing boiling point:
Answer : Option C
Explaination / Solution:
This is on the basis of inter molecular interactions.
Q3. Most industrialized nations are rich financially but poor in
Answer : Option A
Explaination / Solution:
Most industrialized nations are rich financially but poor in biodiversity and traditional knowledge. Biodiversity and traditional knowledge related to bio-resources are can be exploited to develop modern applications.
Q4. An oxidation number of +1 is found in all their compounds of one of the below given options
Answer : Option B
Explaination / Solution:
The alkali metals (Group 1) have 1 valence electron. Alkali metals looses this electron to achieve noble gas configuration, and so alkali metals have oxidation number +1.
Q5.
Identify the intra-uterine contraceptive device from the figure given below
Answer : Option A
Explaination / Solution:
Copper-T is an intra-uterine contraceptive device that prevents the implantation of embryo as well as decrease the motility of sperm due to release of copper ions.
Q6. Net income from property and entrepreneurship is a component of Net Factor Income from Abroad
Answer : Option B
Explaination / Solution:
No Explaination.
Q7. Albert Einstein was awarded the Nobel Prize for his work on
Answer : Option A
Explaination / Solution:
The Nobel Prize in Physics 1921 was awarded to Albert Einstein "for his services to Theoretical Physics, and especially for his discovery of the law of the photoelectric effect". Albert Einstein received his Nobel Prize one year later, in 1922.
Q8. When 2 charged conductors are connected by a wire,
Answer : Option A
Explaination / Solution:
Let the two conductors have capacitances and and let their potentials be and . Total initial energy of the conductors. When two charged conductors are connected by a wire, the flow of charge stops when the potentials are equalized. Let V be the common potential and and be the charges on the conductors after the common potential is attained.
The final energy
The final energy
Q9.
Given that Avagadro’s Number
= 6.02 x 1023 atoms/mol ,
the number of hydrogen atoms in 18g of water is.
Answer : Option B
Explaination / Solution:
Since,18g H2O
= 1mol water containing 6.02 x 1023 molecules of water (H2O )
& the number of H atoms in 1 molecule of hydrogen (H2) = 2
the number of H atoms in 6.02 x 1023 molecules
= (6.02 x 1023 x 2)
=1.204 x 1024.
Q10. A curve which first moves upwards then downwards is__________?
Answer : Option B
Explaination / Solution:
No Explaination.
