CBSE
Multiple Choice QuestionsAssertion: Black rust of wheat is a hazardous disease which is caused by Puccinia fungus.
Reason: Aflatoxin is produced in the groundnut by the infection of a bacterium.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Which of the following is correctly matched
Monstera- Fibrous root
Dahlin- Fasciculated root
Azadirachta- Adventitious root
Basil- Prop roots
Plants having the above given floral diagram are
leguminous
dicots
medicinal and perennial
having pinnately compound leaves
Gerdy fibres are
ligament of neck
ligament of ankles
ligament of palm
ligament of face
Assertion : Storage of seeds at low temperature is possible.
Reason : Respiration and anzymatic activity of seeds are very high at low temperature.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false
If both assertion and reason are false
Assertion : Presence of pneumatophores is a special adaptation of hydrophytes.
Reason : Pneumatophores are positively geotropic shoots that have lenticels and help in gaseous exchange.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false
Which of the following is the correct floral formula for the floral diagram given below?
Select the option that contains all plants which produce non-endospermic seeds.
Gram, Pea, Bean, Groundnut
Castor, Peanut, Orchid, Wheat
Coconut, Walnut, Wheat, Gram
Castor, Maize, Coconut, Orchid
Match Column- I with Column - 2 and choose the correct option from below.
| Column - I | Column - II |
| A. Marginal placentation | (i) Sunflower |
| B. Axile placentation | (ii) Mustard |
| C. Parietal placentation | (iii) Lemon |
| D. Basal placentation | (iv) Pea |
A-(iv), B - (iii), C- (ii), D- (i)
A -(iv), B- (iii), C- (i), D - (ii)
A-(iv), B-(i), C- (ii), D - (iii)
A - (iii), B- (iv), C- (ii), D - (i)
Which of the following is the correct floral formula for the floral diagram given below?
or (5) ()
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