SAT (Stage-1) Mock Test - 55

Chlorine is a strong oxidising agent. During the process it is itself reduced to chloride ion.

Chlorine accepts hydrogen from hydrogen sulphide, oxidising it. Thus, it is an oxidising agent.

Saturated hydrocarbons undergo complete combustion in the presence of a sufficient supply of air and burn with a clean blue flame.

1 gram atom of nitrogen represents 1 mole of N-atoms and 0.5 moles of N₂ molecules.
Since, the volume of 1 mole of a gas at NTP is 22.4 L; the volume of 0.5 moles of a gas at NTP will be 11.2 L

The gas with the maximum number of moles will occupy the maximum volume.
The volume of 1 g molecule of CO₂ (1 mole) is 22.4 L.

Number of moles of NO₂ = 0.5

Hence, CO₂ has the maximum number of moles and will occupy the maximum volume.

Number of moles of CaCO₃ 

It is evident from the formula, the number of moles of Oxygen contained = 3 × 0.1 = 0.3

Since, the density is 1 g cm^-3
Volume of 1 mole (18 g) of H₂O = 18 cm³
i.e., volume of 6.022 × 10²³ molecules of H₂O = 18 cm³
Volume of 1 molecule of H₂O

Number of moles of O-atoms = 2 × number of moles of O₂ = 2 × 1/32 = 1/16

Therefore, number of O-atoms = 1/16 × N₀

This is the correct option. Multipolar neuron consists of one axon and two or more dendrites. Bipolar neuron consists of one axon and one dendrite. Unipolar neuron consists of only one axon.

Test tube baby treatment is another term for IVF, where the eggs and sperm are collected, treated and then fertilized in a laboratory. The resulting embryo is then transferred into the woman's womb. This procedure is used to help infertile couples conceive and have the baby they want.

The glucose is absorbed by active transport into the villi, to be passed into the bloodstream and taken around the body.

The two ways in which glucose uptake can take place are facilitated diffusion (a passive process) and secondary active transport (an active process which on the ion-

gradient which is established through the hydrolysis of ATP, known as primary active transport).

To move substances against a concentration or electrochemical gradient, a cell must use energy. Active transport mechanisms do just this, expending energy (often in the

form of ATP) to maintain the right concentrations of ions and molecules in living cells.

Match the following.

The conversion of nitrate salts into free nitrogen gas is called denitrification.
Denitrification is the reduction of nitrates back into nitrogen gas (N₂), completing the nitrogen cycle. This process is performed by bacterial species such as Pseudomonas and Paracoccus, under anaerobic conditions. They use the nitrate as an electron acceptor in place of oxygen during respiration.

The gametes formed from PPqq will be: Pq and Pq. The gametes formed from the other genotype is: pQ and pQ. The genotype of the offspring will be: PpQq and hence all will be with normal hearing.

If bilirubin cannot be moved through the liver and bile ducts quickly enough, it builds up in the blood and is deposited in the skin. The result is jaundice.

Urea or carbamide is an organic compound. Urea serves an important role in the metabolism of nitrogen-containing compounds by animals and is the main nitrogen-containing substance in the urine of mammals. It is solid, colourless and odourless, and ammonia is converted into urea by the liver.