Q.8 Phosphoric acid is tribasic with three pKa values of 2.14, 6.86, and 12.4, respectively. What is the ionic form of the acid that predominates at pH 3.2?Ans 1.2.3.

Q.7 You need to use 250 µl of a chemical reagent for an experiment from a stock solution of 100 mg/ml. You find that the stock solution is over and for making a fresh stock you have only ...

Q.7 Which of the following statement is correct, given this phylogeny of four species?Ans 1. A has gone extinct2. A is more closely related to C than D3. D evolved from C4. B, C ...

Q.8 The wheels on a drag racing car have a higher diameter at the end of a race than at the beginning. Which of the following is the least important factor contributing to this?Ans 1. The weight of ...

Q.5 If you have a polypeptide of size 11 kilo Daltons, what would be the mass of the open reading frame that codes for the polypeptide? You can take the average mass of an amino acid and a ...

Q.7 11 balls have radii X cm, X+1 cm, …, X+10 cm. Which of the following is true about the volumes of these balls?Ans 1. The mean is equal to the median.2. The mean is greater than the ...

Q.1 When the velocity of enzyme activity is plotted against substrate concentration, what does the plot look like?Ans 1. Hyperbolic curve2. Parabola3. Straight line with positive slope4. Straight line with negative slopeCorrect Ans Provided: 1

Q.2 A seagull flying 30 metres above the ocean spots a fish swimming 6 metres below the surface. The seagull folds its wings and falls to catch the fish. What is the velocity of the seagull when it ...

Q.5 Which of the below sets is one in which all the molecules show a microwave rotational spectrum?Ans 1.2.3.4.Correct Ans Provided: 2

Q.3 A bacterium is happily swimming in an isotonic medium. I now add NaCl to a concentration of 100 mM. Which of the following is true?Ans 1. The osmotic pressure points inward but the water flows outward2. The ...