How would you test the presence of starch in leaves?
Starch is a white, powdery substance consisting of glucose which is used by plants as food. The presence of starch... View Article
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What is the difference between heat and temperature?
Answer: Heat is a form of energy that gives the sensation of hotness or coldness of a body, whereas the... View Article
Name the class of compounds to which enzymes belong.
Answer: Enzymes are polypeptides. Chemically, peptide linkage is an amide formed between -COOH group and -NH2 group. When the number... View Article
What is the audible range of sound for human beings?
Answer: Humans and animals hear by picking up on vibrations caused by sound waves in the air. we ‘catch’ these vibrations... View Article
How does a mixture of CH3COOH and CH3COONa act as a buffer when a small amount of NaOH is added?
Answer: A mixture of a weak acid and its salt with a strong base serves as an acidic buffer. CH3COOH(aq)... View Article
What is the role of saliva in the digestion of food?
Answer: Saliva initiates the process of digestion in the mouth. The food substance which gets mixed with the food in... View Article
What is the mixture of sand, silt and clay is called?
Answer: Loam Loam is a blend of sand, silt and clay to include the beneficial properties of each. It has the... View Article
What are the symptoms of Cushing’s syndrome?
Answer: Cushing’s syndrome is caused by an overabundance of corticosteroids in the body. The major cause of excessive ACTH (adrenocorticotropic... View Article
What is the chemical formula for calcium (II) nitrate?
Answer: The chemical formula of Calcium (II) nitrate is Ca(NO3)2 Calcium Nitrate [Ca(NO3)2] Calcium nitrate is an inorganic compound, other name... View Article
What is common between cats, dogs, whales and monkeys?
They belong to the same class –Mammals What are Mammals? Mammals are a class of animals that includes a wide... View Article
In an endothermic reaction, the value of ΔH is always________
Answer: In an endothermic reaction, the value of ΔH is always positive. Endothermic reactions Endothermic reactions are chemical reactions in... View Article
What is the use of physical balance in measurements?
Answer: The physical balance measures the weight of an object. Weight The force exerted on the mass of the body... View Article
Where is the C.G. of a (1) Scalene Triangle (2) Cylinder
Answer: C.G implies centre of gravity. What is centre of gravity? The centre of gravity is a theoretical point in the body... View Article
Write the IUPAC name of the compound CH2=CH-CN
Answer: The IUPAC name of the compound is 2-Propenenitrile (Prop-2-ene-nitrile) Rules Of Nomenclature As per the Guidelines set by IUPAC,... View Article
The property of self combination of carbon atoms is called:
Answer: The property of self combination of carbon atoms to form long chains is called catenation. Catenation Catenation can be... View Article
How many significant figures there are in 0.04?
Answer: One The significant figures of a given number are those significant or important digits, which convey the meaning according... View Article
Which of the following organism is not triploblastic (1) Worms (2) Arthropods (3) Molluscs (4)Jellyfish
Answer: (4)Jellyfish Jellyfish belong to the phylum Coelenterata; and thus is not triploblastic. Triploblastic The group of Annelids has many worms.... View Article
The solution that exerts highest osmotic pressure is________
Answer: The solution that exerts the highest osmotic pressure is having more colligative ions. Osmotic pressure The minimum pressure that... View Article
Which is the largest coffee producing state of India?
Answer: Karnataka is the largest coffee producing state of India. Karnataka is the leading coffee-producing state in India. During 2018-19, Karnataka... View Article
Which crop is associated with the process of Retting?
Answer: Jute Process of Retting The process of employing the action of micro-organisms and moisture on plants to dissolve much of... View Article
