1.Which chemical compound in tea is responsible for stimulating effect?
A. Carmine
B. Caffeine
C. Nicotine
2.The hydronium ion is
A. H+
B. HO -
C. H2+
D. H3O+
3.Which among the following chemical is used in photography ?
A. Copper sulphate
B. Silver bromide
C. Calcium carbide
D. Calcium sulphate
4.Chemical name of milk of lime
A. Calcium hydroxide
B. Calcium sulphate
C. Calcium oxide
D. Calcium bi carbonate
5.With which of these metals mercury cannot be amalgamated?
A. Zinc
B. Iron
C. Gold
D. Silver
6.According to Dalton's atomic theory, the smallest particle which can exist independently is
A. a molecule
B. a cation
C. an anion
D. an atom
7.The phosphate are a group of minerals of one or more metallic elements chemically associated with the phosphate compound ____
A. PO4
B. PO3
C. PO2
D. PO
8.Water is a ________ conductor of electricity.
A. Super conductor
B. Good conductor
C. Speed conductor
D. All of the above
9.Solid form of which gas is commonly known as ‘Dry Ice’ ?
A. Oxygen
B. Nitrogen
C. Carbon dioxide
D. Hydrogen
10.Which gas is used to disinfect water in swimming pools ?
A. Hydrogen
B. Nitrogen
C. Chlorine
D. Oxygen
11.To produce artificial rains, which chemical is used for Cloud Seeding ?
A. Copper Sulphate
B. Ammonium Nitrate
C. Silver Iodide
D. Potassium Premanganate
12.Which of the following are the ingredients of gun metal?
A. Iron, Zinc, Titanium
B. Iron, tin
C. Iron, Brass, Tin
D. Copper, Tin
13.Hard Water contains which of the following ?
A. Aluminum
B. Chlorine
C. Calcium
14.Which of the following is commonly called a 'polyamide'?
A. Terylene
B. Nylon
C. Rayon
D. Orlon
15.If you wanted to lighten your hair at home, what is the active ingredient in the dye preparation that will lighten your hair?
A. Sodium hydroxide
B. Hydrogen peroxide
C. Phenol
D. Acetic acid
16.Carbon, diamond and graphite are together called
A. allotrope
B. isomers
C. isomorphs
D. isotopes
17.In a gas a burning splinter is put out with a pop sound. The gas is ?
A. Carbon dioxide
B. Oxygen
C. Hydrogen
D. Nitrogen
18.The formula C6H5-CO-CH3 represents
A. Acetone
B. Acetic acid
C. Acetophenone
D. Phenyl acetate
19.Which one is an organic Acid?
A. Citric
B. Sulphuric
C. Nitric
D. Phosphoric
20.Liquefied Petroleum Gas (LPG) consist of :
A. Butane and propane
B. Ethane and hexane
C. Ethane and nonane
D. None of these
21.What is the scientific name of Vinegar ?
A. Citric Acid
B. Acetic Acid
C. Lactic Acid
D. Tartaric Acid
22.Which scale is used to measure the Acid or Alkali (Base) content of a substance ?
A. Mohs scale
B. Beaufort scale
C. Richter scale
D. pH scale
23.Mineral constituent of chlorophyll is—
A. Iron
B. Magnesium
C. Calcium
D. Potassium
24.Which performing the flame test, the paste of the salt in made in HCl because ?
A. HCl is a strong acid
B. HCl is non-oxidising acid
C. Chlorides are relatively volatile
D. HCl is cheaper
25.Galena & Litharge are ores of which of the following metals?
A. Mercury
B. Lead
C. Zinc
26.Which metal would most likely be found in an ore deposit formed by crystal settling in a magma chamber?
A. copper
B. gold
C. silver
D. chromium
27.The covalent bonds which hold amino acids together are called what?
A. Aminic bonds
B. Peptide bonds
C. Ionic bonds
D. Atomic bonds
28.Which one of the following sets of elements has the strongest tendency to form negative ions in gaseous state?
A. Na, Mg, Al
B. Ca, V, Cr
C. N, O, F
D. Ga, In, Tl
29.Actinides are the elements with atomic numbers from
A. 97 to 104
B. 101 to 115
C. 89 to 103
D. 36 from 43
30.The enzyme Nitrite reductase has which of the elements as its constituent ?
A. Molybdenum
B. Copper
C. Iron
A. Carmine
B. Caffeine
C. Nicotine
2.The hydronium ion is
A. H+
B. HO -
C. H2+
D. H3O+
3.Which among the following chemical is used in photography ?
A. Copper sulphate
B. Silver bromide
C. Calcium carbide
D. Calcium sulphate
4.Chemical name of milk of lime
A. Calcium hydroxide
B. Calcium sulphate
C. Calcium oxide
D. Calcium bi carbonate
5.With which of these metals mercury cannot be amalgamated?
A. Zinc
B. Iron
C. Gold
D. Silver
6.According to Dalton's atomic theory, the smallest particle which can exist independently is
A. a molecule
B. a cation
C. an anion
D. an atom
7.The phosphate are a group of minerals of one or more metallic elements chemically associated with the phosphate compound ____
A. PO4
B. PO3
C. PO2
D. PO
8.Water is a ________ conductor of electricity.
A. Super conductor
B. Good conductor
C. Speed conductor
D. All of the above
9.Solid form of which gas is commonly known as ‘Dry Ice’ ?
A. Oxygen
B. Nitrogen
C. Carbon dioxide
D. Hydrogen
10.Which gas is used to disinfect water in swimming pools ?
A. Hydrogen
B. Nitrogen
C. Chlorine
D. Oxygen
11.To produce artificial rains, which chemical is used for Cloud Seeding ?
A. Copper Sulphate
B. Ammonium Nitrate
C. Silver Iodide
D. Potassium Premanganate
12.Which of the following are the ingredients of gun metal?
A. Iron, Zinc, Titanium
B. Iron, tin
C. Iron, Brass, Tin
D. Copper, Tin
13.Hard Water contains which of the following ?
A. Aluminum
B. Chlorine
C. Calcium
14.Which of the following is commonly called a 'polyamide'?
A. Terylene
B. Nylon
C. Rayon
D. Orlon
15.If you wanted to lighten your hair at home, what is the active ingredient in the dye preparation that will lighten your hair?
A. Sodium hydroxide
B. Hydrogen peroxide
C. Phenol
D. Acetic acid
16.Carbon, diamond and graphite are together called
A. allotrope
B. isomers
C. isomorphs
D. isotopes
17.In a gas a burning splinter is put out with a pop sound. The gas is ?
A. Carbon dioxide
B. Oxygen
C. Hydrogen
D. Nitrogen
18.The formula C6H5-CO-CH3 represents
A. Acetone
B. Acetic acid
C. Acetophenone
D. Phenyl acetate
19.Which one is an organic Acid?
A. Citric
B. Sulphuric
C. Nitric
D. Phosphoric
20.Liquefied Petroleum Gas (LPG) consist of :
A. Butane and propane
B. Ethane and hexane
C. Ethane and nonane
D. None of these
21.What is the scientific name of Vinegar ?
A. Citric Acid
B. Acetic Acid
C. Lactic Acid
D. Tartaric Acid
22.Which scale is used to measure the Acid or Alkali (Base) content of a substance ?
A. Mohs scale
B. Beaufort scale
C. Richter scale
D. pH scale
23.Mineral constituent of chlorophyll is—
A. Iron
B. Magnesium
C. Calcium
D. Potassium
24.Which performing the flame test, the paste of the salt in made in HCl because ?
A. HCl is a strong acid
B. HCl is non-oxidising acid
C. Chlorides are relatively volatile
D. HCl is cheaper
25.Galena & Litharge are ores of which of the following metals?
A. Mercury
B. Lead
C. Zinc
26.Which metal would most likely be found in an ore deposit formed by crystal settling in a magma chamber?
A. copper
B. gold
C. silver
D. chromium
27.The covalent bonds which hold amino acids together are called what?
A. Aminic bonds
B. Peptide bonds
C. Ionic bonds
D. Atomic bonds
28.Which one of the following sets of elements has the strongest tendency to form negative ions in gaseous state?
A. Na, Mg, Al
B. Ca, V, Cr
C. N, O, F
D. Ga, In, Tl
29.Actinides are the elements with atomic numbers from
A. 97 to 104
B. 101 to 115
C. 89 to 103
D. 36 from 43
30.The enzyme Nitrite reductase has which of the elements as its constituent ?
A. Molybdenum
B. Copper
C. Iron
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