Q2.Glucose will be lost in the urine of patients suffering from :
Answer : Option CExplaination / Solution:
Glucose will be lost in the urine of patients suffering from diabetes mellitus. It a chronic lifelong condition that affects our body ability to use the energy found in blood.
Q3.for the reaction at 298 K, 2A + B → CΔH = 400 kJ mol−1and ΔS = 0.2 kJ K−1mol−1 At what temperature will the reaction become spontaneous considering ΔH and ΔS to be constant over the temperature range.
Answer : Option BExplaination / Solution:
ΔG= ΔH-TΔS At equilibrium ΔG=0 then T= ΔH/ΔS =2000K
Q4.The presence of milk producing glands is a unique characteristic feature of class
Answer : Option DExplaination / Solution:
Mammalia are found in a variety of habitats – polar ice caps, deserts, mountains,forests, grasslands and dark caves. Some of them have adapted to fly orlive in water. The most unique mammalian characteristic is the presenceof milk producing glands (mammary glands) by which the young onesare nourished. They have two pairs of limbs, adapted for walking, running,climbing, burrowing, swimming or flying.
A solution of Ni(NO3)2 is electrolyzed between platinum electrodes using a current of 5 amperes for 20 minutes. What mass of Ni is deposited at the cathode?
Q7.To provide the abundance of holes the impurity added should be
Answer : Option CExplaination / Solution:
If We introduce a "Trivalent" (3-electron) impurity into the crystalline structure, such as Aluminium, Boron or Indium, which have only three valence electrons available in their outermost orbital, the fourth closed bond cannot be formed. Therefore, a complete connection is not possible, giving the semiconductor material an abundance of positively charged carriers known as "holes" in the structure of the crystal where electrons are effectively missing
Q9.The correct order of uterus layers form outside to inside is
Answer : Option AExplaination / Solution:
The wall of uterus has three layers of tissues. The outer most thin layer is called perimetrium followed by thick layer of smooth muscles, myometrium and innermost glandular tissue is endometrium.
Q10.Navodaya Vidyalayas were established to give modern education of a good standard, to talented students in
Answer : Option AExplaination / Solution:
Navodaya Vidyalayas cater to the rural talent in India. They are established in every district with the purpose of providing a level playing ground to the children of the rural areas.
Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1
Mark for Wrong Answer : -0.5
Mark for Left Answer : 0