Activated charcoal is used to remove colouring matter from pure substances.It works by
Options
(a) oxidation (b) reduction (c) bleaching (d) adsorption
Correct Answer:
adsorption
Explanation:
It has been observed that the surface […]
The standard electrode potential is measured by
Options
(a) electrometer (b) voltmeter (c) pyrometer (d) galvanometer
Correct Answer:
voltmeter
Explanation:
No explanation available. Be the first to write the explanation for this question […]
The carbon dioxide is transported via blood to lungs mostly
Options
(a) in combination with haemoglobin only (b) dissolved in blood plasma (c) as carbaminohaemoglobin and as carbonic acid (d) in the form […]
Which of the following is a disease resistant, high yielding breed of poultry developed in karnataka?
Options
(a) Aseel (b) White leg horn (c) Giriraja (d) Plymouth rock
Correct Answer:
Aseel
Explanation:
No […]
Soil conservation is a practice in which
Options
(a) soil is protected from being carried away by wind and water (b) soil is well aerated (c) soil fertility is enhanced (d) soil erosion […]
A compound, containing only carbon,hydrogen and oxygen, has a molecular weight of 44. On complete oxidation it is converted into a compound of molecular weight 60.The original compound is
Options
(a) an aldehyde […]
The reaction in which phenol differs from alcohol is
Options
(a) it undergoes esterification with carboxylic acid (b) it reacts with ammonia (c) it forms yellow crystals of iodoform (d) it liberates H₂ […]
A gas decolourised by KMnO₄ solution but gives no precipitate with ammoniacal cuprous chloride is
Options
(a) ethane (b) methane (c) ethen (d) acetylene
Correct Answer:
acetylene
Explanation:
No explanation available. Be the […]
Amongest the following,the compound that can most readily get sulphonated is
Options
(a) Benzene (b) toluene (c) Nitrobenzene (d) chlorobenzen
Correct Answer:
toluene
Explanation:
No explanation available. Be the first to write the […]
Which one of the following dfects in the crystals lowers its density
Options
(a) Frenkel defect (b) Schottky defect (c) f-centres (d) Interstitial defect
Correct Answer:
Schottky defect
Explanation:
No explanation available. Be […]
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