1 |
In the Mendeleev's periodic table elements are arranged in the increasing order of their . |
Numbers of neutrone.
Atomic number
Atomic mass
Atomic volume
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2 |
The concept of telluric helisx was developed by |
Lother meyer
A.E. de Chancourtois
New lands
Doberieiner
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3 |
Law of octaves was proposed by |
Lother meyer
D.I.Mendeleev
J.A.R. Newlands
J.W. Dobereiner
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4 |
The law of triads is applicable to |
Lithium, beryllium, boron
Fluorine, chlorine, bromine
Chlorine, bromine, iodine
Sodium, potassium, Rubidium
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5 |
Vitamin which contains cobalt is. |
Vitamin B1
Vitamin B2
Vitamin B6
Vitamin B12
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6 |
Vitamin D1 is chemically known as |
Ergocalciferol
Tocopherol
Aserphthol
Phylloquinone
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7 |
The vitamin which is related to monossaccharides is. |
Vitamin A
Vitamin C
Vitamin D
Vitamin E
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8 |
The deficiency of which vitamin leads to beri brainteaser |
Thiamine
Riboflavin
Pyridoxine
Asorbic acid
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9 |
The steroid which plays an important role in carbohydrate metabolism is. |
Oestrone
Progestrrone.
Androsterone
Cortisone
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10 |
Which of the following does not have an a,b, unsaturated carbonyl group. |
Androsterone
Oestrone
Testosterone
Progesterone
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11 |
Which of the following is not an androgen i.e. male sex hormones. |
Androsterone
Testosterone
Oestrone
All of these are make hormone
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12 |
All steroids on heating wish solenium give |
phenanthrene
Cholesterol
Diels hydrocarbon
Isoprene
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13 |
Sterols are steroids having the functional gruup. |
Ketonic
Al;coholic
Phenolic
Aldehydic
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14 |
An example of cyclic polyterpenoid is |
Myrcene
Alcoholic
Synthetic rubber
Natural rubber
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15 |
A terpenoid which has as alcoholic group in the molecule is. |
Citral
Camphor
Menthol
Carvone
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16 |
a-pinene hydrochloride on warming rearrangements to form bornyl chloride |
Pinacol pinacolone
hofmann
Wagner Meerwein
Wolf
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17 |
Oil of turpentine contains |
a-pinene
b- pinene
Both A and B
Name of these
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18 |
Which of the following is not a characteristics of terponoids. |
They are pleasant smelling liquids
They are steam volatile
They are nitrogenous bases
They are insoluble in water
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19 |
Enfleurage process is ued to extract the essential oils from |
Bark of plant
Seeds of plant
Leaves of plant
Flowers of plant
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20 |
An example of acyclic monotterpenoid is |
a -pinene
Camphor
Geranial
Citral
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21 |
Ingold's isoprene rule states that in tepenoids isoprene units are joined. |
Head to tail
Head to Head
Tail to Tail
In a random order
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22 |
Organic substance responsible for the smell of flowers etc. are grouped together in chemistry as. |
Perfumes
Terpenoids
Flavonoids
Alkaloids
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23 |
Identify a dye which was ot originally obtained from plant source. |
Alizarin
Tyrian purple
Indigotin
Quercitrin
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24 |
Which of the following is not a characteristic of phthalocyanine dyes. |
They are metal complex
the are insoluble in water
They have porphin nucleus
They are used in photographic plates
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25 |
Dyes used in photographic plates to make them panchromatic is. |
Cyanine dyes
Azine dyes
Phthalocyanine dyes
Acridine dyes
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26 |
Which of the following does not belong in the group of herocyclic dyes. |
Acridine
Cyanine
Methylene blue
Amido black
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27 |
Which of the following dyes belongs to the group of acridine dyes. |
Acriflavin
Alizarin
Indigotin
Cyanine
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28 |
The dye obtained from madder root |
Indogotin
Indanthrene
Alizarin
Acriflavin
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29 |
Indigotin is a dye obtained from indigo plant which belongs to the group of. |
Substantive dyes
Mordant dyes
Vat dyes
Disperse dyes
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30 |
Which of the following dye is used an antiseptic . |
Methyl orange
Mercurochrome
Alizarin
Bismarck brown
|