MP TET · Mathematics and Science (Varg-2)
Properties of acids, bases, salts and pH scale.
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Q1 · Acids, Bases and Salts · EASY
A student tests a solution and finds that it turns red litmus paper blue. Which of the following is the most likely pH value of this solution?
Q2 · Acids, Bases and Salts · MEDIUM
When hydrochloric acid (HCl) reacts with sodium hydroxide (NaOH), common salt (NaCl) and water are formed. This type of reaction is called:
Q3 · Acids, Bases and Salts · MEDIUM
A farmer applies quick lime (calcium oxide) to his soil to reduce its acidity. After adding quick lime, the pH of the soil changes from 5.5 to 6.5. Which of the following statements is correct about this change?
Q4 · Acids, Bases and Salts · HARD
A teacher wants to demonstrate the effect of acids on metals. She takes three test tubes containing dilute hydrochloric acid and adds zinc metal to the first, copper metal to the second, and magnesium metal to the third. In which test tube(s) will hydrogen gas be evolved?
Q5 · Acids, Bases and Salts · EASY
Which of the following substances will turn red litmus paper blue?