List of practice Questions

Which of the following is a tautology?
Complete the following table of products:
 

First monomial → Second monomial ↓

2x    

–5y

 3x2

– 4xy

7x 2 y

–9x 2 y 2

2x 

4x2

. . .

. . .

. . .

. . .

. . .

–5y

. . .

. . .

-15x2y

. . .

. . .

. . .

3x2

. . .

. . .

. . .

. . .

. . .

. . .

– 4xy

. . .

. . .

. . .

. . .

. . .

. . .

7x 2 y

. . .

. . .

. . .

. . .

. . .

. . .

–9x2 y2

. . .

. . .

. . .

. . .

. . .

. . .

What is degree of dissociation of 0.05 N NH3 if pKa is 4.75 and pH is 11
Which of the following fluorides of oxygen do not exist?
Catalytic dehydrogenation of primary alcohol will produce a:
A tetrapeptide possesses _____ peptide bonds and can be ______ into amino acids fragments
The number of spectral lines that are possible when electrons in fourth energy level in different hydrogen atoms return to ground state.
One of the following aldehydes undergoes Cannizzaro’s reaction and reduces the Schiff’s reagent, but does not reduce Fehling’s reagent. That is
Which of the following is the strongest oxidizing agent?
Which of the following compounds is formed by covalent bonding?
A carbamate contains:
The orbital angular momentum of a 4d electron will be:
What is the molar mass of \( \text{Na}_2\text{CO}_3 \)?
What is the IUPAC name of the compound \( \text{CH}_3\text{CH}_2\text{COOH} \)?
Which of the following is not equal to 1 in boolean algebra?
Which of the following statements is true?
A car of mass M is moving with uniform velocity v on a horizontal road. When a person of mass m drops on it from above, the velocity of the car will be?
A nucleus with atomic number Z and mass number A undergoes alpha decay. Which of the following is true?
What is the wavelength of a sound wave with a frequency of \( 500 \, \text{Hz} \) in air (speed of sound \( v = 343 \, \text{m/s} \))?
A 10 \( \, \text{kg} \) object is moving with a velocity of \( 5 \, \text{m/s} \). What is the momentum of the object?
As mass A increases. Which of the following quantities related to a nucleus do not change?
An object of mass \( 5 \, \text{kg} \) is moving with a velocity of \( 10 \, \text{m/s} \). What is its kinetic energy?
A particle moves in a straight line with retardation proportional to its displacement. Its loss of kinetic energy for any displacement x is proportional to
A parallel plate capacitor has a capacitance of \( 10 \, \mu\text{F} \). What will be its capacitance when the distance between the plates is halved?
A resistor of \( 10 \, \Omega \) is connected in series with a 12 V battery. What is the current flowing through the resistor?