List of top Physical Sciences Questions

Given below are two statements:
Statement I: $\text{Al(OH)}^{2+}$ ion is predominant in soil between pH 4.7 & 6.5
Statement II: $\text{Al}^{3+}$ ion is predominant in soil pH below 4.7
In light of the above statements, choose the correct answer from the options given below:
Match List I with List II
List I (Weathering Reaction):
A. $\text{CaSO}_4 + 2\text{H}_2\text{O} \rightarrow \text{CaSO}_4 \cdot 2\text{H}_2\text{O}$
B. $2\text{Fe}_2\text{O}_3 \rightarrow 4\text{FeO} + \text{O}_2$
C. $\text{KAlSi}_3\text{O}_8 + \text{HOH} \rightarrow \text{HAlSi}_3\text{O}_8 + \text{KOH}$
D. $4\text{FeO} + \text{O}_2 \rightarrow 2\text{Fe}_2\text{O}_3$

List II (Weathering process):
I. Oxidation
II. Hydration
III. Reduction
IV. Hydrolysis

Choose the correct answer from the options given below:
Which of the following sphere is NOT associated with the soil?
Which of the following is the prerequisite for aggregation?
Pitcher irrigation is NOT suitable for
Which of the following physical quantities is (are ) vector(s) ?
Which of the following statements are true for "Sound" ?
When a bullet is fired from a gun, the gun recoils backward. This phenomenon is an example of
A boy throws a ball straight up at a velocity 10 m/s and catches it when it returns. What will be the velocity of the ball just before the boy catches it?
Velocity-time graph
Velocity-time graph of a body is given. Which of the following statements are true?
Regarding covalent and electrovalent compounds which of the following statements are true?
Bauxite is an ore of which of the following metals?
Which one of the following is the dimension of power ?
The fluid part of blood is known as
The magnetic field lines due to an ordinary bar magnet
Domestic microwave cooking uses
What is the volume of 2 g of oxygen at normal pressure and temperature ?
The pH value of 10 g of pure water was found to be 7. Then what will be the pH value of 1g of same water ?
The resistance of a piece of metal wire is R. On which of the following parameters of the wire or its material, the value of R does not depend upon ?
A train track is laid with 100 m pieces of steel rails. If coefficient of linear expansion of steel is 11 x 10-6, what must be the minimum gap between two pieces of rails so that the train can run safely between 0°C and 50°C ?
A boy starts running with a speed of 1 m / s from a corner of a square of sides 20m along its periphery. What will be his displacement after 35 second ?
In industrial production of ammonia from nitrogen and hydrogen gases, a mixture of potassium oxide and aluminium oxide is used for the purpose of:
Approximate velocity of sound in air at room temperature is
Diamond is an allotropic form of
What is the lowest possible temperature?