Boric acid is an acid because its molecule

Question 72 Boric acid is an acid because its molecule:

A) accepts OH negative ion from water releasing proton
B) Combines with proton from water
C) containes replaceable H positive ion
D) gives up a proton

Answer: accepts OH negative ion from water releasing proton

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Explanation by reaction :
B(OH)₃ + H₂O  B(OH)−
4 + H⁺

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• Who among the following discovered the antibiotic producing fungus from Penicillium genus?
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Who among the following discovered the antibiotic producing fungus from Penicillium genus?

Question 73 Who among the following discovered the antibiotic producing fungus from Penicillium genus?

A) Louis Pasteur
B) Sir Alexander Fleming
C) Stanley Prusiner
D) Robert Hooke

Answer: Sir Alexander Fleming

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For More Questions

• NDA NA Exam GK Questions in Hindi
• Which one of the following is not an example of eukaryotic organism?
• White phosphorus glows in the dark due to
• The main constituent of Vinegar is
• Which one among the following places is not an iron-ore mining area?
• Boric acid is an acid because its molecule
• The IST meridian 82 and 1/2 degree E (82.5 E) passes through a number of states in India. Which one of the following sets of States is correct in this respect?
• Addition of gypsum to cement
• The Manas National Park is situated in the State of
• mixture of CO and H2 is
• Which one of the following is not a sea port?

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Which one among the following places is not an iron-ore mining area?

Question 76 Which one among the following places is not an iron-ore mining area?

A) Badampahar
B) Zawar
C) Bailadila
D) Anantpur

Answer: Zawar

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For More Questions

• NDA NA Exam GK Questions in Hindi
• Which one of the following is not an example of eukaryotic organism?
• White phosphorus glows in the dark due to
• The main constituent of Vinegar is
• Who among the following discovered the antibiotic producing fungus from Penicillium genus?
• Boric acid is an acid because its molecule
• The IST meridian 82 and 1/2 degree E (82.5 E) passes through a number of states in India. Which one of the following sets of States is correct in this respect?
• Addition of gypsum to cement
• The Manas National Park is situated in the State of
• mixture of CO and H2 is
• Which one of the following is not a sea port?

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The main constituent of Vinegar is

Question 78 The main constituent of Vinegar is:

A) Acetic acid
B) Ascorbic acid
C) Citric acid
D) Tartaric acid

Answer: Acetic acid

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For More Questions

• NDA NA Exam GK Questions in Hindi
• Which one of the following is not an example of eukaryotic organism?
• White phosphorus glows in the dark due to
• Which one among the following places is not an iron-ore mining area?
• Who among the following discovered the antibiotic producing fungus from Penicillium genus?
• Boric acid is an acid because its molecule
• The IST meridian 82 and 1/2 degree E (82.5 E) passes through a number of states in India. Which one of the following sets of States is correct in this respect?
• Addition of gypsum to cement
• The Manas National Park is situated in the State of
• mixture of CO and H2 is
• Which one of the following is not a sea port?
• SSC EXAM Preparation Website

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White phosphorus glows in the dark due to

Question 79 White phosphorus glows in the dark due to:

A) amorphous character
B) slow oxidation
C) high ignition temperature
D) good conducting property of electricity

Answer: slow oxidation

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For More Questions

• NDA NA Exam GK Questions in Hindi
• Which one of the following is not an example of eukaryotic organism?
• The main constituent of Vinegar is
• Which one among the following places is not an iron-ore mining area?
• Who among the following discovered the antibiotic producing fungus from Penicillium genus?
• Boric acid is an acid because its molecule
• The IST meridian 82 and 1/2 degree E (82.5 E) passes through a number of states in India. Which one of the following sets of States is correct in this respect?
• Addition of gypsum to cement
• The Manas National Park is situated in the State of
• mixture of CO and H2 is
• Which one of the following is not a sea port?

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Which one of the following is not an example of eukaryotic organism?

Question 80 Which one of the following is not an example of eukaryotic organism?

A) Yeast

B) Bacteria

C) Plant

D) Human being

Answer: awaited

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For More Questions

• NDA NA Exam GK Questions in Hindi
• White phosphorus glows in the dark due to
• The main constituent of Vinegar is
• Which one among the following places is not an iron-ore mining area?
• Who among the following discovered the antibiotic producing fungus from Penicillium genus?
• Boric acid is an acid because its molecule
• The IST meridian 82 and 1/2 degree E (82.5 E) passes through a number of states in India. Which one of the following sets of States is correct in this respect?
• Addition of gypsum to cement
• The Manas National Park is situated in the State of
• mixture of CO and H2 is
• Which one of the following is not a sea port?

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NDA NA EXAM (II) 2015 Solved Paper General Ability Test

NDA NA EXAM (II) 2015 Solved Paper General Ability Test

NDA NA II 2015 Solved Question Paper with Answer Key

Click on respective question to check its answer:

• The 19th Federation Cup National Senior Athletic Championships(2015) was held in:
• Indian athlete Vikas Gowda is associated with
• Which one of the following was the theme of the "International Day of United Nations Peacekeepers" for the year 2015?
• Who among the following is the author of the book, "Pakistan Paradox: Instability ans Resilience"?
• The First Five Year Plan (1951 - 1956) was drafted by
• The Panchayat Raj system under Part-IX of the Constitution of India does not apply to the States of
• The Indian States Committee was formed under
• The 19th Century Faraizi Movement in eastern Bengal developed under the leadership of
• The SAARC Secretariat is located at
• Who among the following founded the Rajamundri Social Reform Association in 1878 in support of widow remarriage?
• The Senia tradition is
• The 'Basic Structure Doctrine' was enunciated by the Supreme Court during the
• The Vijayanagara Empire received its death blow at the battle of
• features of the Permanent Settlement of 1793
• British Officier who was a representative of the Governor General and who lived in a State which was not under direct British rule
• Fourth Schedule to the Constitution of India deals with

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• Which one of the following is not correct in the current Indian scenario?
• Which one of the following statements about the Khilafat Movement is not correct?
• An emergency under Article 352 of the Constitution of India can be declared only during
• Eleventh Five Year Plan (FYP), agriculture sector in India witnessed a growth rate of 3.3 percent per annum 
• Who among the following was associated with the Mughal Court as a physician to Prince Dara Shukoh?
• statements about Subsidiary Alliance devised by Lord Wellesley in the year 1798
• The two provisions of the Constitution of India that most clearly express the power of Judicial review are
• continents accounts for the maximum share in exports from India

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• Which one of the following is not correct in the context of the balance of payments of India during 2013-2014?
• The word 'Secular' was inserted into the Constitution of India by
• According to the Geo-scientists, the shape of the earth
• Which one of the following is useful in paper manufacturing industry?
• alkali metal having highest melting point
• In Egypt, ancient mumies can be found to have their arteries intact due to well preserved
• symbol of the element Tungsten
• X-rays are the electromagnetic radiation whose wavelengths are of the order of
• The loudness of sound is related to
• Which one of the following is not a site of action in human body for the malarial parasite plasmodium?
• SI unit of force 'Newton' (N) is given by
• In blood, platelets are required for
• An up fold in rock is
• Magnetic meridian is an imaginary
• To weld metals together, high temperature is required. Such a high temperature is obtained by burning
• Conservation of momentum in a collision between particles can be understood on the basis of

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• Which of the following statements regarding heavy water are correct?
• Which one of the following describes the Lithosphere?
• Carbon and energy requirements of autotrophic organisms are fulfilled by
• Which one of the following is the correct sequence about various levels of organization of Biosphere?
• SI unit of the thermal conductivity of a material
• Which one of the following vitamins is synthesized in our own skin?
• The term Regur is used to mean

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