Description : The father of modern chemistry is – (1) Priestley (2) Lavoisier (3) Dalton (4) Mendeleeff
Last Answer : (2) Lavoisier Explanation: Antoine Lavoisier was a French nobleman and chemist central to the 18thcentury chemical revolution and a large influence on both the history of chemistry and the history of biology.
Description : Modern periodic law had been given by (1) Moseley (2) Mendeleev (3) Lother-Mayer (4) Lavoisier
Last Answer : (1) Moseley Explanation: In 1913, H.G.J Moseley in England proved that the more fundamental properties of an element are its atomic number. Therefore he suggested that the basis of classification of elements should be atomic number.
Description : Father of Biochemistry is — a. Antoine lavoisier b. Carl Neuberg c. J.E. Summer d. Berzelius
Last Answer : a. Antoine lavoisier
Description : Who is the father of modern chemistry ?
Last Answer : Anthony Lavoisier, the father of modern chemistry.
Description : Who is considered the father of modern Chemistry?
Last Answer : ANSWER: LAVOISIER
Description : Which of the following Indian Nobel Prize winners is associated with economics? A. V.S. Naipaul B. Amartya Sen C. C.V. Raman D. Hargobind Khorana
Last Answer : ANSWER: B
Description : The Wheeler Island has been renamed as – (1) Vikram Sarabhai Island (2) Satish Dhawan Island (3) Abdul Kalam Island (4) C.V. Raman Island
Last Answer : (3) Abdul Kalam Island Explanation: The Rajasthan Atomic Power Station (RAPS) is located at Rawatbhata in Chittorgarh district of the state. Commissioned on 16 December 1973, it is operated by ... six Pressurized Heavy Water Reactor (PHWR) units operating with a total installed capacity of 1,180MW.
Description : Sir C.V. Raman was awarded Nobel Prize for his work connected with which of the following phenomenon of radiation? (1) Scattering (2) Diffraction (3) Interference (4) Polarization
Last Answer : (1) Scattering Explanation: Sir C.V. Raman was awarded Nobel Prize for his work scattering of radiation. Sir Chandrashekhara Venkata Raman was an Indian physicist born in the former Madras Province in India.
Description : The first recipient of Bharat Ratna was (1) Jawaharlal Nehru (2) Govind Vallabh Pant (3) B. C. Roy (4) C. V. Raman
Last Answer : C. V. Raman
Description : Who, out of the following, was the first recipient of Bharat Ratna Award ? (1) B.C. Roy (2) S. Chandrasekhar (3) C.V. Raman (4) Gobind Ballabh Pant
Last Answer : C.V. Raman
Description : The first Indian to win Nobel Prize was (1) C.V. Raman (2) Rabindra Nath Tagore (3) Hargobind Khurana (4) Amartya Sen
Last Answer : Rabindra Nath Tagore
Description : Which India-born scientist was awarded the Nobel Prize in Astrophysics? (1) Prof. Chandrashekhar (2) Sir C.V. Raman (3) Satyendra Nath Bosh (4) Vikram Sarabhai
Last Answer : Prof. Chandrashekhar
Description : Kalinga Prize for popularisation for science was established in 1951 by the UNESCO at the initiative of (1) C.V. Raman (2) Jagadish Chandra Bose (3) Biju Patnaik (4) S. Radhakrishnan
Last Answer : Biju Patnaik
Description : Biologist of Indian origin who received the Nobel Prize was (1) Raja Ramanna (2) C.V. Raman (3) Hargovind Khorana (4) Jagadish Chandra Bose
Last Answer : Hargovind Khorana
Description : Who was the First Indian Nobel Prize winner ? (1) Sir C.V. Raman (2) Mother Teresa (3) S. Chandrashekar (4) Rabindra Nath Tagore
Description : Who is popularly known as ‘Missile Man of India’? (1) Dr. C.V. Raman (2) Dr. Hargobind Khurana (3) Dr. S. Chandrasekhar (4) Dr. A.P.J. Abdul Kalam
Last Answer : Dr. A.P.J. Abdul Kalam
Description : Gunpowder was invented by (1) Roger Bacon (2) Colt (3) C.V. Raman (4) Dr. Gatting
Last Answer : Roger Bacon
Description : Who is called the father of modern chemistry ?
Last Answer : Lavoisier is said to be the father of modern chemistry.
Last Answer : The father of modern chemistry: Anthony Laurent Lavoisier.
Description : Most liquids that conduct electricity are solutions of acids, bases and ______. Salts Who is known as the father of modern chemistry?
Last Answer : Antoine Lavoisier
Description : Lavoisier did not share any basic substances ?
Last Answer : Lavoisier did not share copper.
Description : Who among the following discovered electron? (1) J.J Thomson (2) Max Born (3) Antoine Lavoisier (4) Mendeleef
Last Answer : (1) J.J Thomson Explanation: Electron was discovered by J. J. Thomson in 1897 when he was studying the properties of cathode ray.
Description : The law of multiple proportions was proposed by [IIT 1992] (A) Lavoisier (B) Dalton (C) Proust (D) Gay-Lussac
Last Answer : (B) Dalton
Description : Which of the following scientists first stated the law of conservation of mass? Was it: w) Lavoisier x) Dalton y) Proust z) Boyle
Last Answer : ANSWER: W -- LAVOISIER
Description : Name the person who developed a table of elements which revealed regularities in elemental properties in 1869? w) Theodore Richards x) Antoine Lavoisier y) Dmitri Mendeleev z) Svante Arrhenius
Last Answer : ANSWER: Y -- DMITRI MENDELEEV
Description : Who is regarded as “Maker of Modern India”?
Last Answer : Raja Ram Mohan Roy
Description : When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. On coming back to the lower energy state, they emit light, which we can observe in - (1) Raman spectra (2) Absorption spectra (3) Emission spectra (4) Fluorescence
Last Answer : (3) Emission spectra Explanation: When a metal atom is strongly heated, its electrons absorb the heat energy and jump to a higher energy level. When the electron returns to its original position it ... to the energy the electron has released at each stage °fits fall back to its original state.
Description : When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. On coming back to the lower energy siate, they emit light, which we can observe in (1) Raman spectra (2) Absorption spectra (3) Emission spectra (4) Fluorescence
Last Answer : Emission spectra
Description : Who is regarded as the “Father of the constitution of India”? a) Jawaharlal Nehru b) Rajendra Prasad c) Sachinanda Sinha d) None of the above
Last Answer : d) None of the above
Description : Who is regarded as “The Father of AI?” a) Allan Turin b) John Mc Carthy c) J. C. Shaw d) Allen Newell
Last Answer : b) John Mc Carthy
Description : Jeremy Bentham is regarded as the father of........... (a) Idealism (b) Utilitarianism (c) Individualism (d) Socialism
Last Answer : (b) Utilitarianism
Description : What is the number of elements in a periodic table made by Lavoisier ?
Last Answer : Elements 33 in the periodic table created by Lavoisier .
Description : “Plum Pudding Model” for an atom was proposed by (a) Antoine Lavoisier (b) Robert Boyle (c) Ernest Rutherford (d) J. J. Thomson
Last Answer : Ans:(d)
Description : Who created periodic table? A. Faraday B. Lavoisier C. Arrhenius D. Mendeleev (Answer)
Last Answer : D. Mendeleev (Answer)
Description : "If different processes are used to bring about the same chemical reaction, the enthalpy change is same for all of them". This is __________ law. (A) Hess's (B) Kirchoff's (C) Lavoisier and Laplace (D) None of these
Last Answer : (A) Hess's
Description : What is the basis of modern chemistry ?
Last Answer : Dalton's atomism 6
Description : Who is credited, in the history of modern chemistry, with discovering X-rays?
Last Answer : ANSWER: WILLIAM ROENTGEN
Description : Who is accredited in the history of modern chemistry of proving that neutrons existed?
Last Answer : ANSWER: JAMES CHADWICK
Last Answer : Einstein Father By profession Engineer Was.
Description : The father of the atomic bomb is: w) Einstein x) Oppenheimer y) Faraday z) Strangelove
Last Answer : ANSWER: X -- OPPENHEIMER
Description : Who is known as the Father of the Atomic Bomb? w) Albert Einstein x) J. Robert Oppenheimer y) General Leslie Groves z) Edward Teller
Last Answer : ANSWER: X -- J. ROBERT OPPENHEIMER
Description : Two half-reactions of an electrochemical cell are given below : MnO-4 (aq) + 8H+ (aq) + 5e- → Mn2+ (aq) + 4H2O (I), E° = 1.51 V Sn2+ (aq) → Sn4+ (aq) + 2e- ... the redox equation from the standard potential of the cell and predict if the reaction is reactant favoured or product favoured. -Chemistry
Last Answer : The reactions can be represented at anode and at cathode in the following ways : At anode (oxidation) : Sn2+ → = Sn4+ (aq) + 2e- ] 5 E° = + 0.15 V At cathode (reduction) : MnO-4(aq) + 8H+ ... = E°cathode - E°anode = 1.51 - 0.15 = + 1.36 V ∴ Positive value of E°cell favours formation of product.
Description : Determine the values of equilibrium constant (Kc) and ΔG° for the following reaction : Ni(s) + 2Ag+ (aq) → Ni2+ (aq) + 2Ag(s), E° = 1.05 V (1F = 96500 C mol-1 -Chemistry
Last Answer : According to the formula ΔG° = -nFE° = – 2 × 96500 ×1.05 or ΔG° = -202650 J mol-1 = -202.65 KJ mol-1 Now ΔG° ⇒ -202650 J Mol-1 R = 8.314 J/Mol/K, T = 298 K
Description : Two half-reactions of an electrochemical cell are given below : MnO-4 (aq) + 8H+ (aq) + 5e- → Mn2+ (aq) + 4H2O (I), E° = 1.51 V Sn2+ (aq) → Sn4+ (aq) + ... -reactions and calculate the cell potential from the standard potentials and predict if the reaction is reactant or product favoured. -Chemistry
Last Answer : The reactions can be represented at anode and at cathode in the following ways : At anode (oxidation) : Sn2+ → Sn4+ (aq) + 2e- ] 5 E° = + 0.15 V Af cathode (reduction) : MnO-4(aq) + 8H+ ( ... = E°cathode - E°anode = 1.51 - 0.15 = + 1.36 V ∴ Positive value of E°cell favours formation of product.
Description : For the complex [Fe(en)2Cl2], Cl, (en = ethylene diamine), identify (i) the oxidation number of iron, (ii) the hybrid orbitals and the shape of the complex, (iii) the magnetic behaviour of the complex, (iv) ... an optical isomer also, and (vi) name of the complex. (At. no. of Fe = 26) \ -Chemistry
Last Answer : i) [Fe(en)2Cl2] Cl or x + 0 + 2 (-1) + (-1) = 0 x + (- 3) = 0 or x = + 3 ∴ Oxidation number of iron, x = + 3 (ii) The complex has two bidentate ligands and two ... )2Cl2] Cl, only cis-isomer shows optical isomerism. (vi) Name of complex: Dichloridobis (ethane-1, 2- diamine) Iron (III) chloride
Description : Who discovered the Raman effect ?
Last Answer : Chandrasekhar Raman.
Description : Who discovers Raman effect ?
Last Answer : Chandrasekhar discovers Raman effect.
Description : What does cv raman say about the issue of soil erosion?
Last Answer : Need answer