An artificial pace-maker is implanted subcutaneously and connected to the heart in patients
Options
(a) Having 90% blockage of the three main coronary arteries (b) Having a very high blood pressure (c) With […]
How much energy is released when 6 moles of octane is burnt in air? Given ΔH°f for CO₂(g), H₂O(g) and C₈H₁₈respectively are -490, -240 and +160 kJ/mol
Options
(a) -6200 kJ (b) -37440 kJ […]
The dipole moment is the highest for
Options
(a) trans-2-butene (b) 1,3-dimethylbenzene (c) acetophenone (d) ethanol
Correct Answer:
acetophenone
Explanation:
The value of dipole moment of acetophenone is 3 debye,which is maximum among […]
Of the following, which change will shift the reaction towards the product? I₂(g) ⇌ 2 I(g) , ΔH°r (298 K) = 150 kJ
Options
(a) increase in concentration of I (b) decrease in […]
What is the pH of 0.01 M glycine solution? For glycine, Ka₁ = 4.5 ˣ 10⁻³ and Ka₂ =1.7 ˣ 10⁻¹⁰ at 298 K
Options
(a) 3 (b) 10 (c) 6.1 (d) 7.2
For the equilibrium, H₂O(l) ⇌ H₂O(g) at 1 atm and 298 K,
Options
(a) standard free energy change is equal to zero (ΔG⁰ = 0) (b) free energy change is less then zero […]
Dimethyl glyoxime gives a red precipitate with Ni²⁺ ,which is used for its detection .To get this precipitate readily the bast pH range is
Options
(a) < 1 (b) 2 – 3 (c) […]
The compounds having only primary hydrogen atoms is
Options
(a) isobutene (b) 2,3-dimethylbutene (c) cyclohexane (d) propyne
Correct Answer:
isobutene
Explanation:
No explanation available. Be the first to write the explanation for this […]
Which of the following statements is true for the electrochemical Daniel cell
Options
(a) Electrons flow from copper electrode to zinc electrode (b) Current flows from zinc electrode to copper electrode (c) Cations […]
The nucleic acid base having two possible binding sites is
Options
(a) thymine (b) cytosine (c) guanine (d) adenine
Correct Answer:
guanine
Explanation:
No explanation available. Be the first to write the explanation […]
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