Who discovered that diborane reacts with aldehydes and ketones to produce dialkoxyboranes, Which are hydrolysed by water to produce alcohols?

[SSC CGL 2023]

The signs of charges of electron, proton and neutron are__________, respectively.

[SSC CPO 2024]

Which German chemist and physicist proposed that an aromatic compound must have an odd number of pairs of electrons, Which can mathematically be written as 4n + 2 (n = 0,1,2,3, etc.) in 1931?

[SSC CGL 2023]

In which year did Langmuir reform the Lewis concept by abandoning the idea of a stable cubical arrangement of the octet and introducing the term ‘covalent bond’?

[SSC CGL 2022]

In 1957, who redefined a model that predicted the shape of individual molecules based on the extent of electron-pair electrostatic repulsion ?

[SSC CPO 2023]

When did Linus Carl Pauling receive the Nobel Prize in Chemistry for 'his research into the nature of the chemical bond and its applications to the elucidation of the structure of complex substances'?

[SSC CGL 2023]

Who received the Nobel Prize in 1901 for 'recognition of the extraordinary services rendered by the discovery of the laws of chemical dynamics and osmotic pressure in solutions'?

[SSC CGL 2023]

Who among the following is regarded for the discovery of catalysts?

Which among the following scientists proposed that "All matter was composed of atoms which are  indivisible and indestructible building blocks".?

'Burning of wood turns into ashes', which of the following options explain the process correctly?

The process of respiration is an example of which of the following laws?

_______ are stable, negatively charged particles found in all atoms.

Consider the following statements about thermodynamics:

1. In an isothermal process, the internal energy of an ideal gas remains constant.
2. An adiabatic process is always reversible.
3. The entropy change in the reversible adiabatic process is zero.

Which statement(s) is/are correct?

Who among the following scientists proposed that all matter was composed of atoms which were indivisible and indestructible building blocks?

Who among the following scientists proposed that all matter was composed of atoms which were indivisible and indestructible building blocks?

Which of the following statements accurately reflects the Second Law of Thermodynamics?

Match the following.

In 1957, who redefined a model that predicted the shape of individual molecules based on the extent of electron-pair electrostatic repulsion?

Which of the following statements best describes the Law of Conservation of Energy?

Which of the following statements accurately reflects the Second Law of Thermodynamics?

Which of the following statements accurately reflects the Second Law of Thermodynamics?

What is the equation of an ideal gas?

Which of the following is also called the First Law of Thermodynamics?

'PV = nRT' is a formula for which of the following laws?

The term that accounts for intermolecular force in Van der Waals equation is-

Which chemical law proposes that 'soft drinks and soda bottles are sealed under high pressure to increase the solubility of CO2'?

Dalton's theory was based on which of the following laws?

According to Dalton's atomic theory, which smallest particle can live independently?

Dalton's atomic theory stated that all matter was made up of 

The process of respiration is an example of which of the following laws?

Dalton's law of partial pressure is not applicable to a mixture of _________.

The ways by which the efficiency of a heat engine can be increased by?

Who among the following is regarded for the discovery of catalysts?

A gas has volume 500 mL at 27°C. What is volume at 127°C (P constant)?

One mole of an ideal gas occupies how much volume at STP?

Consider the following statements about thermodynamics:

1. In an isothermal process, the internal energy of an ideal gas remains constant.
2. An adiabatic process is always reversible.
3. The entropy change in the reversible adiabatic process is zero.

Which statement(s) is/are correct?

Dalton's theory was based on which of the following laws?

The Law of Constant Proportions states that:

_______ are stable, negatively charged particles found in all atoms.

Which among the following term is defined by the First Law of Thermodynamics?

Which of the following suggested that the smallest constituent of gases like hydrogen, oxygen and nitrogen are not atoms but diatomic molecules?

When did Linus Carl Pauling receive the Nobel Prize in Chemistry for his research into the nature of the chemical bond and its applications to the elucidation of the structure of complex substances?

Name the law in Physics which states that equal volume of all gases under the same conditions of temperature and pressure contain an equal number of molecules.

According to Avogadro's Law, under the same conditions of temperature and pressure, equal volumes of gases contain an equal number of molecules. This law is a precursor to which fundamental concept in chemistry?

Consider the following statements about the Laws of Thermodynamics:

1. The Zeroth Law of Thermodynamics defines temperature.
2. The First Law of Thermodynamics is a statement of the conservation of momentum.
3. The Second Law of Thermodynamics states that the total entropy of an isolated system can never decrease over time.

Which of the above statements is/are correct? 

Consider the following statements about thermodynamics:

1. In an isothermal process, the internal energy of an ideal gas remains constant.
2. An adiabatic process is always reversible.
3. The entropy change in the reversible adiabatic process is zero.

Which statement(s) is/are correct?

Name the law in Physics which states that equal volume of all gases under the same conditions of temperature and pressure contain an equal number of molecules.

Which of the following statements accurately reflects the Second Law of Thermodynamics?

Who among the following scientists proposed that all matter was composed of atoms which were indivisible and indestructible building blocks?

Who among the following is regarded for the discovery of catalysts?