List of top Questions asked in BITSAT- 2020

In a closed system, A(s) rightleftharpoons 2B(g) + 3C(g) if the partial pressure of C is doubled, then the partial pressure of B will be:
For a particular reversible reaction at temperature T, Δ H and Δ S were found to be both positive. If Tₑ is the temperature at equilibrium, then the reaction would be spontaneous when:
Sometimes, the colour observed in Lassaigne’s test for nitrogen is green. It is because:
Fructose on reduction gives a mixture of two alcohols which are related as:
What will happen when D(+)-glucose is treated with methanolic HCl followed by Tollens’ reagent?
Which of the following forms the base of talcum powder?
The important antioxidant used in food is:
The first emission line in the atomic spectrum of hydrogen in the Balmer series appears at:
CH₃Cequiv CCH₃ H₂/Pt A D₂/Pt B. The compounds A and B respectively are:
An aromatic compound has molecular formula C₇H₇Br. Give the possible isomers and the appropriate method to distinguish them.
Which of the following methods gives better yield of p-nitrophenol?
Formation of polyethylene from calcium carbide takes place as follows: CaC₂ + 2H₂O → Ca(OH)₂ + C₂H₂ C₂H₂ + H₂ → C₂H₄ nC₂H₄ → (–CH₂–CH₂–)ₙ The amount of polyethylene obtained from 64.1kg of CaC₂ is:
The hypothetical complex chloro-diaamminecobalt(III) chloride can be represented as:
The normality of 26% (wt/vol) solution of ammonia (density =0.855) is approximately:
1.25 g of a sample of Na₂CO₃ and Na₂SO₄ is dissolved in 250mL solution. 25mL of this solution neutralizes 20mL of 0.1NH₂SO₄. The percentage of Na₂CO₃ in the sample is:
Which of the following compounds has all the four types (1^∘, 2^∘, 3^∘ and 4^∘) of carbon atoms?
Which of the following has two stereoisomers?
A circular disc of radius R and thickness (R)/(6) has moment of inertia I about an axis passing through its centre perpendicular to its plane. It is melted and recast into a solid sphere. The moment of inertia of the sphere about its diameter is:
In PO₄³-, the formal charge on each oxygen atom and the P–O bond order respectively are:
The decreasing order of the ionization potential of the following elements is:
Knowing that the chemistry of lanthanoids (Ln) is dominated by its +3 oxidation state, which of the following statements is incorrect?
Which of the following arrangements does not represent the correct order of the property stated against it?
Which of the following is paramagnetic?
Two identical charged spheres are suspended from a common point by massless strings of length l, initially at a distance d(d≪ l) apart because of their mutual repulsion. The charges begin to leak from both the spheres at a constant rate. As a result, the spheres approach each other with velocity v. Then v varies as a function of the distance x between the spheres as:
A point particle of mass 0.1kg is executing S.H.M. of amplitude 0.1m. When the particle passes through the mean position, its kinetic energy is 8×10⁻3J. Obtain the equation of motion of this particle if its initial phase of oscillation is 45^∘.