In the periodic table, the atomic radius of the atoms decrease from left to right. This means that Carbon is smaller than Boron. So from the choices you can rule out the first and third choice.
Now, the reason why Carbon is smaller than Boron is because Boron has more protons and as the protons increase it attracts the electrons closer, which makes the atom smaller.
Carbon has more protons, so it exerts a greater pull. The answer is then Option 2: Boron has a larger radius and the protons in carbon exert a greater pull.
As for the second question, a compound is defined as a substance that is made up of two DIFFERENT elements that are chemically bonded. If you look at the second option, it is a compound. It is made up of hydrogen and oxygen atoms.
The answer is then option 2.
Answer:
true
Explanation:
no explanation on this it's clear enough
Answer:
False
Explanation:
When the proteins change its conformation and attain a 3-Dimensional structure therefore they form a pore or cleft like structure. This cleft is formed by the different part of the amino acid sequence which helps from the weak bonds between the proteins to the substrate.
The substrate gets attached to the active site and the enzymes lower down the activation energy of the reaction and thus proceeds the reaction at a faster speed.
Since the active site is the site for the attachment of the substrate and not other enzymes therefore False is the correct answer.
The content of vaccine varies from vaccine to vaccine but it has some live form of the disease in the vaccine
Vaccine work by injecting a small amount of virus in the blood stream along some other agent which causes the body to produce antibodies which fight the infection
The school going kids receive vaccine because their body is no immunity and likely to be a carrier of diseases and spread them.
