TG EAMCET (EAPCET) Chemistry Multiple Choice Questions (MCQs)
TG EAMCET Chemistry Questions (41-50)
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Which of the following is a characteristic of dynamic equilibrium?
- A) The concentrations of reactants and products remain constant
- B) Reactants are completely converted into products
- C) The reaction does not occur in reverse
- D) Only products are formed
Answer: A) The concentrations of reactants and products remain constant
-
The equilibrium constant (Kc) for a reaction is affected by:
- A) Pressure
- B) Temperature
- C) Concentration
- D) All of the above
Answer: B) Temperature
-
The law of mass action states that the rate of a chemical reaction is proportional to:
- A) The concentration of the reactants
- B) The concentration of products
- C) The total number of molecules
- D) The pressure of the reaction system
Answer: A) The concentration of the reactants
-
Which of the following is true for homogeneous equilibria?
- A) All reactants and products are in different phases
- B) Reactants and products are in the same phase
- C) The reaction occurs only in gaseous phase
- D) The reaction occurs only in the liquid phase
Answer: B) Reactants and products are in the same phase
-
According to Le-Chatelier’s principle, an increase in pressure on a system will:
- A) Shift the equilibrium toward the side with more moles of gas
- B) Shift the equilibrium toward the side with fewer moles of gas
- C) Have no effect on the equilibrium
- D) Only affect the reactants
Answer: B) Shift the equilibrium toward the side with fewer moles of gas
-
Which of the following is a Bronsted-Lowry acid?
- A) NH₃
- B) H₂O
- C) HCl
- D) CH₃OH
Answer: C) HCl
-
The ionization constant of water (Kw) is:
- A) 10⁻¹⁴ at 25°C
- B) 1 at 25°C
- C) 10⁻⁷ at 25°C
- D) 1.0 × 10⁻⁷ at 100°C
Answer: A) 10⁻¹⁴ at 25°C
-
Which of the following acids is polyprotic?
- A) HCl
- B) H₂SO₄
- C) HNO₃
- D) HClO₄
Answer: B) H₂SO₄
-
The common ion effect reduces the solubility of:
- A) A weak acid in a weak base solution
- B) A strong base in a weak acid solution
- C) A salt in a solution containing a common ion
- D) A weak base in a strong acid solution
Answer: C) A salt in a solution containing a common ion
-
The position of hydrogen in the periodic table is best described as:
- A) A noble gas
- B) A halogen
- C) A non-metal with characteristics of alkali metals
- D) A transition metal
Answer: C) A non-metal with characteristics of alkali metals
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