Answer : Option AExplaination / Solution:
The Pauli Exclusion Principle states that, in an atom or molecule, no two electrons can have the same four electronic quantum numbers. As an orbital can contain a maximum of only two electrons, the two electrons must have opposing spins.
Q2.Sneha ceased to get smell of a perfume applied to her clothes but her friend Reema who passed by complimented her for the noticeable fragrance. This is an example of :
Answer : Option CExplaination / Solution:
The sensory organs detect all types of changes in the environment and send appropriate signals to the CNS, where all the inputs are processed and analysed.
Q4.If T1is the temperature of the surrounding medium and T2 is the temperature of the body, then according to Newton’s Law of Cooling rate of cooling of the body is
Answer : Option BExplaination / Solution:
Newton's law of cooling states that the rate of heat loss of a body is directly proportional to the difference in the temperatures between the body and its surroundings.
Q5.Recycling of materials and energy will lead to :
Answer : Option CExplaination / Solution:
Recycling of materials and energy will lead to decrease in environmental pollution as amount of waste material will be lesser and so lesser pollution will be caused.
Q8.Yojna whose aim was to construct and upgrade the dwelling units for the slum dwellers
Answer : Option DExplaination / Solution:
VAMBAY stands for “Valmiki Ambedkar Aawas Yojna”. It is a central govt. sponsored programme for the slum dwellers living in different towns and cities all over the country. The central govt. provides the funds for construction. Integrated with the above programme is another central govt. scheme i.e. Nirmal Bharat Abhiyan, a programme aimed at providing basic toilet facilities to the urban poor at a bare minimal cost.
Q9.Bryophytes flourish is moist and shady environments because
Answer : Option DExplaination / Solution:
These plants can live in soil but are dependent on water for sexual reproduction as they release antherozoids into water where they come in contact with archegonium to produce zygote. They usually occur in damp, humid and shaded localities.
Answer : Option DExplaination / Solution:
The eukaryotic ribosomes are 80S while the prokaryotic ribosomes are 70S. Here ‘S’ stands for the sedimentation coefficient; it indirectly is a measure of density and size.
Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1
Mark for Wrong Answer : -0.5
Mark for Left Answer : 0