Q1. Polio is caused by a
(a) protozoan
(b) fungi
(c) virus
(d) bacteria
Q2. Which one of the following represents a group of human diseases caused by virus?
(a) Measles, Polio, Typhoid
(b) Measles, Typhoid, Tuberculosis
(c) Measles, Chickenpox, Hepatitis-A
(d) Chickenpox, Malaria, Hepatitis-A
Q3. Match the organisms in Column I with their actions is Column II.
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Column I
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Column II
|
|
A. Lactobacillus
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1. Nitrogen-fixation
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B. Protozoan
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2. AIDS
|
|
C. Rhizobium
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3. Malaria
|
|
D. Virus
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4. Curd formation
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The correct matching is
(a) A-1, B-2, C-3, D-4
(b) A-1, B-4, C-3, D-2
(c) A-4, B-3, C-1, D-2
(d) A-4, B-1, C-2, D-3
Q4. Select from the following a group of diseases caused by bacteria.
(a) Malaria, Polio and Typhoid
(b) Chickenpox, Meningitis and Tuberculosis
(c) Tuberculosis, Pneumonia and Typhoid
(d) Chickenpox, Influenza and Polio
Q5. Consider the following Column I and Column II in which the names of microorganisms are given in Column I and the groups to which they belong are given in Column II.
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Column I
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Column II
|
|
A. Aspergillus
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1. Algae
|
|
B. Lactobacillus
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2. Bacteria
|
|
C. Paramecium
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3. Fungi
|
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D. Spirogyra
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4. Protozoa
|
|
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5. Virus
|
The correct match of the items is
(a) A-3, B-2, C-4, D-1
(b) A-5, B-3, C-2, D-4
(c) A-3, B-2, C-4, D-5
(d) A-2, B-3, C-4, D-1
Q6. Phenolphthalein in acidic solution is
(a) Colorless
(b) pink colored
(c) yellow colored
(d) orange colored
Q7. The colour of neutral litmus solution is
(a) red
(b) blue
(c) purple
(d) yellow
Q8. Which of the following indicators is an olfactory indicator?
(a) litmus
(b) vanilla
(c) turmeric
(d) phenolphthalein
Q9. Which one is suitable method to find the accurate pH value?
(a) pH meter
(b) pH paper
(c) Universal indicator
(d) Litmus solution
Q10. Which one of the following statements is correct about universal indicator?
(a) It is a mixture of HCl and NaOH
(b) It is a mixture of many indicators
(c) It is a solution of phenolphthalein in alcohol
(d) It is a solution of phenolphthalein in water.
Solutions
S1. Ans.(c)
S2. Ans.(c)
S3. Ans.(c)
S4. Ans.(c)
S5. Ans.(a)
S6. Ans.(a)
S7. Ans.(c)
S8. Ans.(b)
S9. Ans.(a)
S10. Ans.(b)
