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Question:- In which of the following diseases of plant chlorophyll of the leaves get destroyed and leaves get shrinked? A. Mosaic disease of tobacco B. Citrus Canker C. Tundu disease of wheat D. Rhizoctonia
Answer:- Ans. A Explanation: In Mosaic disease of tobacco leaves get shrinked and become small. Even chlorophyll of the leaves gets destroyed.
Question:- Name the disease of plant in which leaves, branches, fruits all are affected? A. Spider Mites B. Mealybugs C. Aphids D. Citrus Canker
Answer:- Ans. D Explanation: This disease of plant is originated in China. Leaves, branches, fruits all are affected by this disease.
Question:- Name a disease of plant in which fine webbing occurs on undersides of the leaves? A. Spider Mites B. Anthracnose C. Mealybugs D. Rhizoctonia
Answer:- Ans. A Explanation: Spider Mites disease of plant fine webbing occurs on undersides of the leaves.
Question:- In which disease of plant stem rot at soil line with brown to red lesions? A. Rhizoctonia B. Angular leaf Spot C. Bacterial Blight D. Bacterial Spot
Answer:- Ans. A Explanation: In Rhizoctonia disease plant stem rot at soil line with brown to red lesions. From the above article we have learnt various diseases of plants, causal organisms and their symptoms.
Question:- In which form the chemical compound RDX is used? A. As an composition B. As an reactor C. As an explosive D. As an nuclear weapon
Answer:- C
Question:- As a vegetable preservative poly______ foam is used. A. Uthane B. Uriathenes C. Urathanes D. Urethanes
Answer:- D
Question:- Chemistry is a branch of science which can be used for providing the services to mankind. Comment on the statement. A. True B. False C. May Be D. Strongly not
Answer:- D
Question:- Bio-chemical compounds are used as.... A. Skin Treatments B. Food preservatives C. Cooking Oils D. All of the above
Answer:- D
Question:- Match the following: Set I a. Fertilisers b. Nuclear Bomb c. LPG d. Carbon Set I 1. Constructive and destructive matter 2. Cooking Gas 3. Curse of chemical reactions 4. Advanced process Code: a b c d A. 3 4 2 1 B. 1 2 3 4 C. 4 1 2 3 D. 2 3 4 1
Answer:- missing ANS
Question:- Tell the composition of soap? A. Sodium salt with fatty acids. B. Potassium salt with fatty acids C. Both a & b D. Sodium and Potassium salt mixed with chemicals
Answer:- C
Question:- Detergent is defined as..... A. A liquid surfactant B. A liquid soluble C. A liquid sovent D. A liquid solution
Answer:- A
Question:- Which of the following compound is not used as an an alkali? A. Sodium hydroxide B. Potassium hydroxide C. Carbon hydroxide D. Nitrogen hydroxide
Answer:- D
Question:- Define toxicity? A. A chemical reaction B. A process used in the manufacturing of detergents C. A harmful effect of soaps and detergents required to measure the effectiveness. D. A process used in the manufacturing of soaps
Answer:- C
Question:- Match the following: Set I a. A Fatty Acid b. Potassium Hydroxide c. Non-ionic Surfactants d. Neutralization Set II 1. Better Alkali 2. Process to make detergent 3. Process to make soap 4. Oil and fats Code: a b c d A. 3 4 2 1 B. 1 2 3 4 C 4 1 2 3 D. 2 3 4 1
Answer:- C