Cluster · Chemistry History and Fundamental Laws

d
Clusters / #1231
tight score 0.64

General Science Chemistry and Physics Concepts
Questions
221
Questions in this cluster
219 total
Question Category Subtype Difficulty

Which scientific law states that mass can neither be created nor destroyed in a chemical reaction?

pipeline-1233757
ib intermediate

In 1937, who along with Sir Christopher Ingold proposed nucleophilic substitution reactions of alkyl halides and related compounds?

pipeline-1199143
delhi_police intermediate

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

pipeline-1198702
delhi_police intermediate

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

pipeline-1134952
delhi_police intermediate

Which law states that mass can neither be created nor destroyed in a chemical reaction?

pipeline-1131322
delhi_police intermediate

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?

pipeline-1131328
delhi_police intermediate

Which German chemist used the technique of preparing hydrocarbons by electrolysis of solutions of salts of fatty acids?

pipeline-1131323
delhi_police intermediate

Which French chemist summarised his experiment in 1806, and proved that the mass ratio of elements in a chemical compound is always the same, regardless of the source of the compound?

pipeline-1140072
delhi_police intermediate

In which year did Antoine Lavoisier publish ‘Methods of Chemical Nomenclature’, which included the rules for naming chemical compounds that are still in use today?

pipeline-1133714
delhi_police intermediate

Which law of thermodynamics is also known as the law of conservation of energy?

pipeline-1133698
delhi_police intermediate

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?

pipeline-1082538
delhi_police intermediate

Which French chemist summarised his experiment in 1806, and proved that the mass ratio of elements in a chemical compound is always the same, regardless of the source of the compound?

pipeline-1243670
delhi_police intermediate

Who coined the term ‘zeroth law of thermodynamics’ in 1931, which asserts that two bodies in equilibrium with a third are in equilibrium with each other?

pipeline-1133294
delhi_police intermediate

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’?

pipeline-988726
railways intermediate

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?

pipeline-853765
railways intermediate

In 1784, who discovered the composition of water through his experiment with hydrogen and oxygen?

pipeline-846825
railways intermediate

In 1937, who along with Sir Christopher Ingold proposed nucleophilic substitution reactions of alkyl halides and related compounds?

pipeline-841863
railways intermediate

The signs of charges of electron, proton and neutron are __________, respectively.

pipeline-841851
railways intermediate

Which scientist synthesised an organic compound, urea, from an inorganic compound, ammonium cyanate?

pipeline-846432
railways intermediate

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

pipeline-846437
railways intermediate

Who, in the 1860s, undertook a thorough investigation of the gas laws expressing the relationships of pressure. temperature and volume in carbon dioxide?

pipeline-846815
railways intermediate

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

pipeline-825033
railways intermediate

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

pipeline-853673
railways intermediate

Who, in the 1860s, undertook a thorough investigation of the gas laws expressing the relationships of pressure. temperature and volume in carbon dioxide?

pipeline-842637
railways intermediate

Which scientist synthesised an organic compound, urea, from an inorganic compound, ammonium cyanate?

pipeline-853668
railways intermediate

If a gas is confined in a container with a fixed temperature and its volume is halved, what happens to the pressure of the gas?

pipeline-824434
railways intermediate

Which principle states that if a system at equilibrium is subjected to a change in concentration, temperature, volume, or pressure, then the system readjusts itself to counteract the effect of the applied change?

pipeline-823075
railways intermediate

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? 

pipeline-848132
railways intermediate

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?

pipeline-802914
railways intermediate

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

pipeline-842835
railways intermediate

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? 

pipeline-802609
railways intermediate

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?

pipeline-835907
railways intermediate

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?

pipeline-824282
railways intermediate

If a gas is confined in a container with a fixed temperature and its volume is halved, what happens to the pressure of the gas?

pipeline-835896
railways intermediate

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

pipeline-824286
railways intermediate

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

pipeline-826819
railways intermediate

Adiabatic is a thermodynamic process in which _____________.

pipeline-1199386
railways intermediate

Which law of thermodynamics is also known as the law of conservation of energy?

pipeline-1199385
railways intermediate

Kinetic energy of gas molecules is directly proportional to

pipeline-1172130
railways intermediate

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

pipeline-1156035
railways intermediate

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

pipeline-1140329
railways intermediate

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

pipeline-1134063
railways intermediate

What is the need to balance chemical equations?

pipeline-1086964
railways intermediate

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?

pipeline-1134062
railways intermediate

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? 

pipeline-1080742
railways intermediate

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

pipeline-1070045
railways intermediate

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

pipeline-1070349
railways intermediate

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?

pipeline-1067230
railways intermediate

In 1937, who along with Sir Christopher Ingold proposed nucleophilic substitution reactions of alkyl halides and related compounds?

pipeline-1045348
railways intermediate

The signs of charges of electron, proton and neutron are __________, respectively.

pipeline-1043247
railways intermediate
Page 4 of 5