General Science - Online Test
Q1. Sarla is on protein-deficient diet. As a result her plasma proteins content is reduced. She may develop symptom like :
Answer : Option B
Explaination / Solution:
Consuming protein deficient diet for longer duration may results into reduction in protein plasma reduction. The symptoms that appear on body includes swelling of hands and feet.
Q2. The state of hybridization of the central atom and the number of lone pairs over the central atom in are
Answer : Option C
Explaination / Solution:
CN= 0.5[V+M-C+A]
For POCl3 V=5 M=3 C =A=0 So CN=4
so hybridization is sp3. And there are 4 bps so 0 lps.
Q3. Figure shows a metal rod PQ resting on the smooth rails AB and positioned between the poles of a permanent magnet. The rails,the rod, and the magnetic field are in three mutual perpendicular directions. A galvanometer G connects the rails through a switch K. Length of the rod = 15 cm, B = 0.50 T, resistance of the closed loop containing the rod = . Assume the field to be uniform. Suppose K is open and the rod is moved with a speed of 12 cm in the direction shown. Polarity and magnitude of the induced emf are
Answer : Option D
Explaination / Solution:
According to lenz's law P is positive end
Q4. Use the formula T = 0.29 cmK to obtain the characteristic temperature range for m
Answer : Option B
Explaination / Solution:
No Explaination.
Q5. As per U.S. greenhouse gas emissions report which of the following accounted for the second largest percentage of greenhouse gases?
Answer : Option C
Explaination / Solution:
According to U.S. greenhouse gas emissions report methane (CH4CH4) accounted of the second largest percentage of greenhouse gases after Chlorofluorocarbon (CFCs).
Q6. Two Synonyms are
Answer : Option C
Explaination / Solution:
Tricarboxylic acid cycle and citric acid cycle are two synonyms as both represent same cycle occurring during respiration process.
Q7. Carbon tetra chloride has a dipole moment
Answer : Option B
Explaination / Solution:
CCl4 is symmetrical hence dipole moment is zeo.
Q8. Hertz Means
Answer : Option B
Explaination / Solution:
No Explaination.
Q9. If an electron accelerated through a potential difference of 500 volt attains a speed of 1.33 then specific charge of the electron should be
Answer : Option B
Explaination / Solution:
eV0=12mv2em=v22V0=(1.33×107)22×500=1.76×1011CKg−1
Q10. Choose the correct order of decrease in hydration enthalpies of alkaline earth metals in the options given below
Answer : Option C
Explaination / Solution:
As the size increases due to increase in ionic radii , hydration energy decreases.
