Advertisements
Advertisements
प्रश्न
Name three biochemical catalysts found in the human body.
Advertisements
उत्तर
Biochemical catalysts found in human body:
- Pepsin
- Tryspin
- lipase.
APPEARS IN
संबंधित प्रश्न
Give reason .
A person suffering from acidity is advised to take an antacid.
FILL IN THE BLANK
In a double decomposition precipitation reaction both the reactants must be ............ soluble.
Balancing a chemical equation is based on
Name the type of chemical reaction shown by the following equation:
NaOH + HCl → NaCl + H2O
Match the pairs.
| a. | Photosynthesis | i. | Tendency to lose electrons |
| b. | Water | ii. | Reactant in combustion process |
| c. | Sodium chloride | iii. | Chemical change |
| d. | Dissolution of salt in water | iv. | Covalent bond |
| e. | Carbon | v. | Ionic bond |
| f. | Fluorine | vi. | Physical change |
| g. | Magnesium | vii. | Tendency to form anion |
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Sodium chloride
What is a chemical reaction?
What do you observe? When
Barium chloride is added to sodium sulphate solution
Give balanced equation for the following conversion affected by heat alone on the substance:
Copper nitrate to nitrogen dioxide
Give balanced equation for the following conversion affected by heat alone on the substance:
Ammonium dichromate to nitrogen
Give balanced equation for the following conversion affected by heat alone on the substance:
Zinc carbonate to zinc oxide
Complete the table given below.
| Addition of dil. H2SO4 to FeS | Odour of gas evolved |
What happens when cane sugar is strongly heated? Mention any two changes in it.
The chemical change is ______.
Melting of wax is a change where a solid changes to liquid state. Give one more such change which you observe in your surroundings
Iron benches kept in lawns and gardens get____________. It is a _________ change because a new _________ is formed.
A student took a solution of copper sulphate in a beaker and put a clean iron nail into it and left it for about an hour.
Are these changes chemical in nature?
Which is used as a catalyst during the process of hydrogenation of oils?
How can we prevent rusting?
______ is the chemical name of limestone.
