General Science - Online Test
Q1. Under the industrial policy of 1991, the number of industries reserved for the public sector have been reduced from 17 to
Answer : Option A
Explaination / Solution:
Under the industrial policy of 1991, the number of industries reserved for the public sector were reduced from 17 to only 8, which were considered to be of strategic importance.
Q2.
Enthalpy of combustion of carbon to is –393.5 kJ . Calculate the heat released upon formation of 35.2 g of from carbon and dioxygen gas.
Answer : Option A
Explaination / Solution:
when 1 mole of is produced energy released is –393.5 kJ Moles of given =35.2/44 =0.8 moles So energy released = 0.8 x393.5 KJ/mol = 315 KJ/mol
Q3. A deficit in balance of trade indicates
Answer : Option A
Explaination / Solution:
No Explaination.
Q4.
Find out the Coefficient of M.D from median from the following series
Answer : Option A
Explaination / Solution:
No Explaination.
Q5. A cell dipped in 0.5 M sucrose has no effect. It is dipped in 0.5 M NaCl, the cell will
Answer : Option A
Explaination / Solution:
A cell dipped in 0.5 M sucrose has no effect due to osmosis as concentration of sucrose is more of equal to cytoplasm but 0.5 M NaCl cause exosmosis that leads to plasmolysis.
Q6. India’s road transport is _____ largest in the world
Answer : Option C
Explaination / Solution:
India has a road network of over 5,472,144 kilometres (3,400,233 miles) as on 31 March 2015, the second largest road network in the world.
Q7. Silicon carbide is an example of
Answer : Option B
Explaination / Solution:
SiC is a network solid.
Q8. The major approach towards the crop improvement programme is
Answer : Option C
Explaination / Solution:
Crop improvement programme is carried out to obtain crops with desired traits that may be more yields, resistance to disease, higher nutrient value etc. Two plants having desired traits are hybridized to obtain combination of desired traits.
Q9. The elements charecterised by the filling of 4 f-orbitals, are:
Answer : Option A
Explaination / Solution:
The two rows of elements at the bottom of the Periodic Table, called the Lanthanoids, Ce(Z = 58) – Lu(Z = 71) and Actinoids, Th(Z = 90) – Lr (Z = 103) are characterised by the outer electronic configuration (n-2)f1-14 (n-1)d0-1ns2. The last electron added to each element is filled in f- orbital. These two series of elements are hence called the Inner-Transition Elements (f-Block Elements).
Q10.
Nine particles have speeds of 5.00, 8.00, 12.0, 12.0, 12.0, 14.0, 14.0, 17.0, and 20.0 m/s. What is the rms speed?
Answer : Option C
Explaination / Solution:
no. of molecule per unit volume
mean free path
