OAVS TGT Science Mock Test - 6 - OTET MCQ

Ca(OH)₂ + Cl₂ → CaOCl₂ + H₂O 
(Manufacturing of bleaching powder)

In myopia, u = infinity , v = d = distance of far point
By 1/F = 1/v - 1/u
We get  f = -d
Since the f is negative, the lens used is concave.

At high temperature and high pressure Krypton and Xenon forms some compounds like Xenon, Tetrafluride, xenon Oxyfluride. 

As per the option (b),( c), (d) , these water harvesting concept, yet not there in Madhya Pradesh by leaving the Option ( a) Bundhis. Ponds are located in the Jammu  region, Bandharas are located in Maharashtra, and Nadis in Rajasthan. Bundhis is the very old water harvesting concept in Madhya Pradesh as leaving the options b, c, and, d. 

Analysis of Mitochondrial Membranes

- Outer Mitochondrial Membrane: The outer mitochondrial membrane is quite porous because of the presence of many integral proteins known as porins. These proteins form channels that allow the free diffusion of molecules and ions up to a certain size, including small proteins.

- Inner Mitochondrial Membrane: The inner mitochondrial membrane is deeply folded, forming structures known as cristae. These folds increase the surface area of the membrane, thereby enhancing the ability of the mitochondria to produce ATP (adenosine triphosphate), which is the energy currency of the cell.

- Length of Membranes: The statement that the outer membrane is longer than the inner membrane is not correct. The length of the membranes is not a distinct feature of mitochondria. Instead, the inner membrane has more surface area due to its folds or cristae.

- Number of Membranes: Mitochondria are double-membraned organelles. They have an outer membrane and an inner membrane, separated by an intermembrane space. The statement that mitochondria mostly have a single membrane is incorrect.

So, based on the analysis, the correct statement regarding mitochondrial membranes is "The outer membrane is porous while the inner membrane is deeply folded".the inner membrane has more curls and turns compared to outer membrane , you can also take reference of brain(it has many curls and turns(neurons) and many experts say that our brains' neurons are much longer in length of our inner intestine(inner intestine measures 7 meters)).

Carnallite is an evaporite mineral a hydrated potassium magnesium chloride. It is variably colored yellow to white, reddish or blue. It occurs with a sequence of potassium and magnesium evaporite.

Pear flesh is infused with very fine grit, made of clusters of stone cells. Stone cells, a subtype of sclereid cells, make up some other very hard tissues like peach pits and nut shells. Stone cells are born with their own death as an end goal. They begin as all other plant cells do, with thin primary walls.

In fission (or binary fission), a parent separates into two or more individuals of about equal size. This type of reproduction is common among single-celled organisms including bacteria, archaea, and unicellular eukaryotes, such as protists and some fungi. The single cell divides into two daughter cells.

Insulin, a hormone produced by the pancreas, plays a crucial role in regulating blood sugar levels in the body. It facilitates the uptake of glucose from the bloodstream into cells, thereby lowering blood sugar levels. Imbalances in insulin production or function can lead to conditions like diabetes mellitus, where blood sugar levels are not properly controlled. ---

Aquaculture is the production of useful aquatic plants and animals like prawns, fish, lobsters, crabs, mollusks, etc using various types of water resources.

 

The compound Sulphur = 8%
Therefore, 8g of S is present in 100g.
(Least molecular mass means that at least one atom of Sulphur should be present in a molecule.)
Therefore, 32g of S is peasant in 100/8 x 32 = 400

When glucose is completely oxidized in aerobic respiration, the end products are carbon dioxide and water. This process involves the breakdown of glucose through multiple steps, including glycolysis and the Krebs cycle, ultimately leading to the production of carbon dioxide and water as waste products. This efficient process generates a significant amount of ATP for cellular energy.

The given equation is a displacement reaction in which Fe of Fe₂O₃ has been displaced by Al. Hence, (c) is the correct option.

Because it is a saturated hydrocarbon and saturated ones doesn't go addition. But it will undergo substitution reaction.

It is metalloid.

Artificial ecosystems, like gardens or aquariums, are man-made environments where humans control and manipulate the ecosystem's components. Unlike natural ecosystems, which develop independently, artificial ecosystems are created by humans for specific purposes such as growing specific plants or keeping certain animals in captivity.

Power generated in a windmill depends on the velocity with which wind is moving.

The Thymus Gland produces the hormone Thymosin. This hormone plays a vital role in the maturation of T-lymphocytes, which are crucial for the proper functioning of the immune system. The Thymus Gland, located in the upper region of the sternum in front of the heart, is essential for immune system development.

Explanation:
To determine the mineral nutrient/element whose loss is compensated by growing a pulse crop between two cereal crops, we need to understand the concept of crop rotation and nutrient cycling.
Crop rotation:
Crop rotation is the practice of growing different crops in a sequence on the same piece of land. It is done to improve soil fertility, control pests and diseases, and increase crop yield.
Nutrient cycling:
Nutrient cycling refers to the process by which nutrients are taken up by plants, released into the soil through plant residues or root exudates, and then taken up by subsequent crops.
Role of pulse crops:
Pulse crops, such as peas, lentils, and beans, are known for their ability to fix atmospheric nitrogen through a symbiotic relationship with nitrogen-fixing bacteria. These bacteria convert atmospheric nitrogen into a form that can be utilized by plants. When the pulse crop is plowed back into the soil, it releases nitrogen into the soil, thus replenishing the nutrient levels.
The mineral nutrient/element compensated by pulse crops:
In this case, growing a pulse crop between two cereal crops helps compensate for the loss of nitrogen.
The correct answer is C: Nitrogen.
Here are the key points to remember:
- Crop rotation is the practice of growing different crops in a sequence on the same piece of land.
- Nutrient cycling refers to the process of taking up and releasing nutrients by plants and subsequent crops.
- Pulse crops have the ability to fix atmospheric nitrogen through a symbiotic relationship with nitrogen-fixing bacteria.
- When pulse crops are plowed back into the soil, they release nitrogen, replenishing the nutrient levels.
- Growing a pulse crop between two cereal crops helps compensate for the loss of nitrogen.
- The mineral nutrient/element compensated by pulse crops is nitrogen.

If you have concerns about your vision or any other health-related issues, it is always recommended to consult with a qualified healthcare professional.

An atom can be defined as the smallest particle of an element, which can take part in chemical change or reaction and still retain the identity of the element. Notice that the atom is not the smallest particle of an element, as there are electrons, protons and neutrons which are smaller, but, it is the smallest which can be involved in chemical change and still retain the chemical properties of the element.

Explanation:
When a pure tall plant (TT) is crossed with the pure short plant (tt), then the progeny in the F₁ generation will be hybrid (Tt). When the F₁ generation is self-crossed (Tt), then in the F₂ generation, the progeny produced will be tall homozygous (TT), Tall heterozygous (Tt), and dwarf homozygous in the ratio of 1:2:1. This type of cross between single pair of contrasting characters is called a monohybrid cross. The tall and dwarf plants were produced in a ratio of 3:1 (75% tall plants and 25% dwarf plants). But in the given question, the ratio of pure tall plants to short plants in F₂ will be 1:1.
Answer: B. 1 : 1

Hydropower facilities can have large environmental impacts by changing the environment and affecting land use, homes, and natural habitats in the dam area. Most hydroelectric power plants have a dam and a reservoir.

Dichloro diphenyl trichloroethane, commonly known as DDT, is a colourless, tasteless and an almost odorless crystalline chemical compound. 

Many scientists describe a "transition metal" as any element in the d-block of the periodic table, which includes groups 3 to 12 on the periodic table. In actual practice, the f-block lanthanide and actinide series are also considered transition metals and are called "inner transition metals".

There are a number of properties shared by the transition elements that are not found in other elements, which results from the partially filled d shell. These include
1. the formation of compounds whose color is due to d–d electronic transitions
2. the formation of compounds in many oxidation states, due to the relatively low energy gap between different possible oxidation states[
3. the formation of many paramagnetic compounds due to the presence of unpaired d electrons. A few compounds of main group elements are also paramagnetic (e.g. nitric oxide, oxygen)

Scattering of beam of light when passes through a solution is called tyndall effect. Colloidal solution shows the tyndall effect and scatter the beam of light.

The physical state of water at 10^°C is liquid state. Below 0^°C water is in solid state and above 100^°C water is in vapour state.

Isotopes are the atoms of the same element with similar atomic number but different atomic mass.The elements of isotopes share same chemical properties but different physical properties

Conversion of methane to Carbon tetrachloride is a substitution reaction as hydrogen atoms are replaced by chlorine atoms.