In a chemical reaction, what is the substance that is consumed?
Anonymous Quiz
50%
Reactant
23%
Product
20%
Catalyst
7%
Enzyme
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Which of the following is an example of a double displacement reaction?
Anonymous Quiz
83%
Na₂SO₄ + BaCl₂ → BaSO₄ + 2NaCl
12%
Zn + CuSO₄ → ZnSO₄ + Cu
4%
CaCO₃ → CaO + CO₂
1%
2H₂ + O₂ → 2H₂O
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What happens to the color of copper sulfate solution when iron nails are dipped in it?
Anonymous Quiz
51%
Blue to green
18%
Blue to colorless
26%
Blue to brown
5%
Blue to red
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Which gas is produced when sodium bicarbonate reacts with hydrochloric acid?
Anonymous Quiz
61%
CO₂
8%
O₂
26%
H₂
5%
N₂
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Based on new 2024-25 syllabus
This year many questions were directly from this book only so download it fast for next session
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Which of the following is the basic unit of life? (PYQ:2022)
Anonymous Quiz
12%
Tissue
5%
Organ
80%
Cell
3%
Organism
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Which of the following is not a function of stomata? (PYQ:2021)
Anonymous Quiz
17%
Gaseous exchange
28%
Water absorption
17%
Transpiration
37%
Photosynthesis
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What is the role of bile in the digestion of fats? (PYQ:2020)
Anonymous Quiz
61%
It emulsifies fats
24%
It digests fats
9%
It stores fats
6%
It synthesizes fats
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Which part of the human digestive system is responsible for the absorption of nutrients? (PYQ:2019)
Anonymous Quiz
14%
Stomach
69%
Small intestine
13%
Large intestine
4%
Liver
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The process of breakdown of glucose to release energy is called? (PYQ:2018)
Anonymous Quiz
23%
Photosynthesis
65%
Respiration
9%
Transpiration
4%
Excretion
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In which of the following organisms does respiration occur through the skin? (PYQ:2017)
Anonymous Quiz
28%
Fish
57%
Frog
6%
Bird
9%
Human
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Which of the following processes is used by plants to obtain carbon dioxide for photosynthesis? (PYQ:2016)
Anonymous Quiz
48%
Diffusion
32%
Osmosis
14%
Active transport
6%
Facilitated diffusion
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Which enzyme in the human stomach helps in the digestion of proteins? (PYQ:2015)
Anonymous Quiz
17%
Amylase
63%
Pepsin
16%
Trypsin
5%
Lipase
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Which of the following is a waste product of respiration? (PYQ:2014)
Anonymous Quiz
10%
Oxygen
8%
Water
69%
Carbon dioxide
12%
Nitrogen
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Which part of the nephron is responsible for the filtration of blood? (PYQ:2013)
Anonymous Quiz
70%
Bowman's capsule
14%
Loop of Henle
11%
Collecting duct
5%
Distal convoluted tubule
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In which of the following does oxygenated and deoxygenated blood mix? (PYQ:2012)
Anonymous Quiz
34%
Fish
42%
Amphibian
19%
Mammal
5%
Bird
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Which of the following is the site of photosynthesis in plant cells? (PYQ:2011)
Anonymous Quiz
16%
Mitochondria
69%
Chloroplast
5%
Nucleus
10%
Cytoplasm
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Which of the following carries deoxygenated blood to the lungs? (PYQ:2010)
Anonymous Quiz
49%
Pulmonary artery
34%
Pulmonary vein
8%
Aorta
10%
Vena cava
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