In parasympathetic nervous system which of the following is released?
Options
(a) epinephrine (b) norepinephrine (c) serotonin (d) acetylcholine
Correct Answer:
acetylcholine
Explanation:
The parasympathetic nervous system acts by relesing a chemical substance,acetylcholine,at […]
Three of the following statements regarding cell organelles are correct, while one is wrong. Which one is wrong?
Options
(a) Lysosomes are double membrane vesicles budded off from Golgi apparatus and contain digestive […]
A stele with a central core of xylem surrounded by phloem is called or Actinostele is a modification
Options
(a) Protostele (b) Siphonostele (c) Solenostele (d) Dictyostele
Correct Answer:
Protostele
Explanation:
Protostele term was […]
For the reaction one of the mole of zinc dust with one mole of sulphuric acid in a bomb calorimeter, ΔU and w coorespond to
Options
(a) ΔU< 0,w = 0 (b) ΔU < […]
ΔH°f (298 K) of methanol is given by the chemical equation
Options
(a) CH₄(g) + 1/2 O₂(g) → CH₃OH(g) (b) C + 1/2 O₂(g) + 2H₂(g) → CH₃OH(l) (c) C(diamond) + 1/2 O₂(g) + […]
Which of the following gives propyne on hydrolysis
Options
(a) Al₄C₃ (b) Mg₂C₃ (c) B₄C (d) La₄C₃
Correct Answer:
Mg₂C₃
Explanation:
No explanation available. Be the first to write the explanation for this […]
For a reaction , 2NOCl(g) ⇌ 2NO(g) + Cl₂(g), Kc at 427⁰C is 3 ˣ 10⁻⁶ mol⁻¹ L. The value of Kp is nearly
Options
(a) 7.50 ˣ 10⁻⁵ (b) 2.50 ˣ 10⁻⁵ […]
When 10 mL of 0.1 M acetic acid (pKa = 5.0 ) is titrated against 10mL of 0.1 M ammonia solution (pKb = 5.0),the equivalence point occurs at pH
Options
(a) 5 (b) […]
The unit in which the solubility product of barium phosphate is expressed as
Options
(a) mol² dm⁻⁶ (b) mol³ dm⁻⁹ (c) mol⁴ dm⁻¹² (d) mol⁵ dm⁻¹⁵
Correct Answer:
mol⁵ dm⁻¹⁵
Explanation:
No explanation […]
In diborane the two H-B-H angles are nearly
Options
(a) 60⁰,120⁰ (b) 95⁰,120⁰ (c) 95⁰,150⁰ (d) 120⁰,180⁰
Correct Answer:
95⁰,120⁰
Explanation:
No explanation available. Be the first to write the explanation for this […]
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