In the myopia eye defect the rays of light
In the myopia eye defect, the rays of light
Options
(a) Do not enter the eye at all (b) Come to a focus at back of retina (c) Come to a focus in […]
In the myopia eye defect, the rays of light
Options
(a) Do not enter the eye at all (b) Come to a focus at back of retina (c) Come to a focus in […]
Hill reaction occurs in
Options
(a) High altitude plants (b) Total darkness (c) Absence of water (d) Presence of ferredoxin
Correct Answer:
Presence of ferredoxin
Explanation:
No explanation available. Be the first to […]
For sound (good) reflex actions we require intact
Options
(a) spinal cord (b) medulla oblongata (c) hypothalamus (d) cerebellum
Correct Answer:
spinal cord
Explanation:
Reflex action is controlled by spinal cord as well […]
Which one of the following has ΔS⁰ greater then zero
Options
(a) CaO(s)+ CO₂(g) ⇌ CaCO₃(s) (b) NaCl(aq) ⇌ NaCl(s) (c) NaNO₃(s) ⇌ Na⁺(aq) + NO₃⁻(aq) (d) N₂(g) + 3H₂(g) ⇌ 2NH₃(g)
Correct Answer: […]
One gram sample NH₄NO₃ is decomposed in a bomb calorimeter.The temperature of the calorimeter increases by 6.12K.The heat capacity of the system is 1.23kJ/g/deg.What is the molar heat of decomposition for NH₄NO₃
Options
(a) […]
The mixture of concentrated HCl and HNO₃ made in 3:1 ratio contains
Options
(a) ClO₂ (b) NOCl (c) NCl₃ (d) N₂O₄
Correct Answer:
NOCl
Explanation:
No explanation available. Be the first to write […]
The reagent commonly used to determine hardness of water titrimetrically is
Options
(a) oxalic acid (b) disodium salt of EDTA (c) sodium citrate (d) sodium thiosulphate
Correct Answer:
disodium salt of EDTA
Explanation: […]
In which of the following acid – base titration,pH is greater than 8 at equivalence point
Options
(a) acetic acid versus ammonia (b) acetic acid versus sodium hydroxide (c) hydrochloric acid versus ammonia […]
In which one of the following is not a buffer solution
Options
(a) 0.8 M H₂S + 0.8 M KHS (b) 2 M C₆H₅NH₂ + 2 M C₆H₅NH₃⁺Br⁻ (c) 3 M H₂CO₃ + […]
MnO₄²⁻ (1 mole) in neutral aqueous medium is disproportionated to
Options
(a) 2/3 mole of MnO₄⁻ and 1/3 mole of MnO₂ (b) 1/3 mole of MnO₄⁻ and 2/3 mole of MnO₂ (c) 1/3 […]
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