Q.13 A solution containing NAD+ and NADH has an optical density of 0.233 at 340 nm and 1.000 at 260nm. While this solution absorbs at 260 nm, NADH alone absorbs […]
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Free Energy Change for Proton Transport Across Gastric pH Gradient
Q.12 The pH of gastric juice in the stomach is 2.0. However the pH inside the cells that line the stomachis 7.0. For transport of protons from inside the cell […]
Nematode UNC DPY Dihybrid Cross F2 Percentage
Q.11 Assume that the gene UNC is essential for the coordinated movement of a nematode and that thewild-type allele U is dominant over the mutant allele u. Similarly, the wild-type […]
Continuity of Function \(\tan x / x\) at \(x=0\)
Q.10 Let the function f : ℝ → ℝ be defined by f(x) = f(x) = \[ \begin{cases} \frac{\tan x}{x} & \text{if } x \neq 0, \\ k & \text{if […]
De Moivre’s Theorem Solution & Explanation
Q.9 The value of the complex number (1+i)^150+(1+i)^150 is _____. (1+i)^150 + (1-i)^150 equals 2^151. This complex number problem simplifies using polar form and De Moivre’s theorem.[code_execution] Correct Answer […]
Total Number of Mappings from {1,2} to {3,4,5,6,7}
Q.8 The total number of mappings from the set {1,2} to the set {3, 4,5,6,7} is _____. The total number of mappings from the set {1,2} to {3,4,5,6,7} is 25. […]
Maximum Distance FM Radio Signal 50m Antenna 107 MHz
Q.7 A 50-metre tall antenna transmits at 107 MHz (one of the FM radio broadcast frequencies). Calculate the maximum distance from the antenna at which the transmitted signal can be […]
Elevator Weighing Scale Physics
Q.6 A man weighing 70 kg stands on a weighing scale which is placed in an elevator. The elevator is moving up towards its destination floor with a velocity of […]
Number of P-H Bonds in H3PO2
Q.5 The number of phosphorous-hydrogen bonds in H 3 PO2 is ____ H3PO2, known as hypophosphorous acid, contains exactly 2 phosphorus-hydrogen (P-H) bonds. This structure explains its strong reducing properties […]
Number of Peaks in the 1313C‑NMR Spectrum of CDCl33
Q.4 The number of peaks in the 13 C-NMR spectrum of CDCl3 is ____ The 1313C‑NMR spectrum of CDCl33 shows three peaks, appearing as a triplet near 77 ppm. Introduction In NMR spectroscopy, […]


