GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 104
1031). The pyrolusite ore contains
A). Fe
B). Al
C). Mn
D). Cu
Answer: Mn
1032). When. an acidified solution of ferrous ammonium sulphate is treated with KMnO4 solution, the ion which is oxidised is
A). Fe^2+
B). So4^2-
C). NH4^+
D). MnO4
Answer: Fe^2+
1033). Which of the following is a naturally occurring polymer?
A). Polyethylene
B). PVC
C). Acetic acid
D). Protein
Answer: Protein
1034). According to Arrhenius concept, base is a substance which
A). gives a pair of protons
B). donates protons
C). accepts a lone pair of electrons
D). donates hydroxyl ions
Answer: donates hydroxyl ions
1035). Consider-the following statements:
Assertion (A): Electric cookers are coated with magnesium oxide.
Reason (R): It protects them against fire.
Now select your answer according to the coding scheme given below:
A). Both (A) and (R) are true and (R) is the correct explanation of (A)
B). Both (A) and (R) are true, but (R) is not the correct explanation of (A)
C). (A) is true, but (R) is false
D). (A) is false, but (R) is true
Answer: Both (A) and (R) are true and (R) is the correct explanation of (A)
1036). The element(s) which exist in liquid state at room temperature is (are)
I. Sodium
A). Fe
B). Al
C). Mn
D). Cu
Answer: Mn
1032). When. an acidified solution of ferrous ammonium sulphate is treated with KMnO4 solution, the ion which is oxidised is
A). Fe^2+
B). So4^2-
C). NH4^+
D). MnO4
Answer: Fe^2+
1033). Which of the following is a naturally occurring polymer?
A). Polyethylene
B). PVC
C). Acetic acid
D). Protein
Answer: Protein
1034). According to Arrhenius concept, base is a substance which
A). gives a pair of protons
B). donates protons
C). accepts a lone pair of electrons
D). donates hydroxyl ions
Answer: donates hydroxyl ions
1035). Consider-the following statements:
Assertion (A): Electric cookers are coated with magnesium oxide.
Reason (R): It protects them against fire.
Now select your answer according to the coding scheme given below:
A). Both (A) and (R) are true and (R) is the correct explanation of (A)
B). Both (A) and (R) are true, but (R) is not the correct explanation of (A)
C). (A) is true, but (R) is false
D). (A) is false, but (R) is true
Answer: Both (A) and (R) are true and (R) is the correct explanation of (A)
1036). The element(s) which exist in liquid state at room temperature is (are)
I. Sodium
II. Bromine
III. Mercury
IV. Magnesium
A). I alone is correct
B). I and II are correct
C). II and III are correct
D). all are correct
Answer: II and III are correct
1037). Which of the following is the correct order of calorific values of fuel?
A). Hydrogen > Petrol > Wood
B). Wood > Hydrogen > Petrol
C). Petrol > Wood > Hydrogen
D). Wood > Petrol > Hydrogen
Answer: Hydrogen > Petrol > Wood
1038). Chloropatite is the ore of
A). Chlorine
B). Phosphorous
C). Calcium
D). Potassium
Answer: Phosphorous
1039). White phosphorous is always kept under
A). water
B). kerosene
C). alcohol
D). benzene
Answer: water
A). I alone is correct
B). I and II are correct
C). II and III are correct
D). all are correct
Answer: II and III are correct
1037). Which of the following is the correct order of calorific values of fuel?
A). Hydrogen > Petrol > Wood
B). Wood > Hydrogen > Petrol
C). Petrol > Wood > Hydrogen
D). Wood > Petrol > Hydrogen
Answer: Hydrogen > Petrol > Wood
1038). Chloropatite is the ore of
A). Chlorine
B). Phosphorous
C). Calcium
D). Potassium
Answer: Phosphorous
1039). White phosphorous is always kept under
A). water
B). kerosene
C). alcohol
D). benzene
Answer: water
1040). 1D^2 & 1T^3 are the isotopes of which of the following?
A). Hydrogen
B). Titanium
C). Diamond
D). Tungsten
Answer: Hydrogen
A). Hydrogen
B). Titanium
C). Diamond
D). Tungsten
Answer: Hydrogen
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