100 Science Questions for TNPSC – Static GK being part of the General Awareness section is asked in every Tamil Nadu government exam and is also important from the final interview. The Static GK section can be the easiest section when studied and revised regularly. In this blog, we cover the Important Rivers in Tamil Nadu in detail which is very important for the upcoming Tamil Nadu Government exams.
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100 Science Questions for TNPSC | Sneak Peek
- A solution turns red litmus blue; its pH is likely to be
A. 1
B. 4
C. 5
D. 10
Answer: D
- A solution reacts with crushed eggshells to give a gas that turns lime-water milky.
The solution contains
A. NaCl
B. HCl
C. LiCl
D. KCl
Answer: B
- 10 mL of a solution of NaOH is found to be completely neutralized by 8 mL of a given solution of HCl. If we take 20 mL of the same solution of NaOH, the amount HCl solution (the same solution as before) required to neutralize it will be
A. 4 mL
B. 8 mL
C. 12 mL
D. 16 mL
Answer: D
- Which one of the following types of medicines is used for treating indigestion?
A. Antibiotic
B. Analgesic
C. Antacid
D. Antiseptic
Answer: C
- What happens when a solution of an acid is mixed with a solution of a base in a test tube?
(i) The temperature of the solution increases
(ii) The temperature of the solution decreases
(iii) The temperature of the solution remains the same
(iv) Salt formation takes place
A. (i) only
B. (i) and (iii)
C. (ii) and (iii)
D. (i) and (iv)
Answer : D
- An aqueous solution turns red litmus solution blue. Excess addition of which of the following solution would reverse the change?
A. Baking powder
B. Lime
C. Ammonium hydroxide solution
D. Hydrochloric acid
Answer: D
- During the preparation of hydrogen chloride gas on a humid day, the gas is usually passed through the guard tube containing calcium chloride. The role of calcium chloride taken in the guard tube is to
A. absorb the evolved gas
B. moisten the gas
C. absorb moisture from the gas
D. absorb Cl– ions from the evolved gas
Answer : C
- Which of the following substance will not give carbon dioxide on treatment with dilute acid?
A. Marble
B. Limestone
C. Baking soda
D. Lime
Answer : D
- Which of the following is not a mineral acid?
A. Hydrochloric acid
B. Citric acid
C. Sulphuric acid
D. Nitric acid
Answer : B
- Which among the following is not a base?
A. NaOH
B. KOH
C. NH4OH
D. C2H5 OH
Answer: D
- Which one of the following elements exhibit maximum number of valence electrons?
A. Na
B. Al
C. Si
D. P
Answer: D
- Which of the following gives the correct increasing order of the atomic radii of O, F and N?
A. O, F, N
B. N, F, O
C. O, N, F
D. F, O, N
Answer: D
- Which among the following elements has the largest atomic radii?
A. Na
B. Mg
C. K
D. Ca
Answer: D
- Which of the following elements would lose an electron easily?
A. Mg
B. Na
C. K
D. Ca
Answer: C
- Which of the following elements does not lose an electron easily?
A. Na
B. F
C. Mg
D. Al
Answer: B
- Which of the following are the characteristics of isotopes of an
element?
(i) Isotopes of an element have same atomic masses
(ii) Isotopes of an element have same atomic number
(iii) Isotopes of an element show same physical properties
(iv) Isotopes of an element show same chemical properties
A. (i), (iii) and (iv)
B. (ii), (iii) and (iv)
C. (ii) and (iii)
D. (ii) and (iv)
Answer: D
- Carbon exists in the atmosphere in the form of
A. carbon monoxide only
B. carbon monoxide in traces and carbon dioxide
C. carbon dioxide only
D. coal
Answer : C
- Which of the following statements are usually correct for carbon compounds? These
(i) are good conductors of electricity
(ii) are poor conductors of electricity
(iii) have strong forces of attraction between their molecules
(iv) do not have strong forces of attraction between their molecules
A. (i) and (iii)
B. (ii) and (iii)
C. (i) and (iv)
D. (ii) and (iv)
Answer : D
- A molecule of ammonia (NH3 ) has :
A. only single bonds
B. only double bonds
C. only triple bonds
D. two double bonds and one single bond
Answer : A
- Buckminsterfullerene is an allotropic form of
A. Phosphorus
B. Sulphur
C. Carbon
D. Tin
Answer : C
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