Q. Methanoic acid is normally found in -
1) muscles
2) urine
3) ant stings
4) human brain
Q. Which one of the following is not an example of an oxidation reaction?
1) The taste of butter changes if left for a longer period
2) A white substance is formed when an aqueous solution of barium chloride is mixed with a sodium sulphate solution
3) A reddish-brown powder gets coated on articles made of iron
4) Wine gets sour with time
Q. The number of moles of oxygen gas used in the complete combustion of 1 mole of glucose is -
1) 1
2) 3
3) 6
4) 12
Q. What happens to the gravitational force between two objects if the mass of one object is doubled and the distance between them is also doubled?
1) The force would remain the same
2) The force would be doubled
3) The force would be halved
4) The force would increase by a factor of 4
Q. Which one of the following statements is not correct?
1) An electric motor converts electrical energy into mechanical energy
2) An electric generator works on the principle of electromagnetic induction
3) The magnetic field at the center of a long circular coil carrying current will be parallel straight lines
4) A wire with green insulation is usually the live wire of an electric supply
Q. What is the correct sequence of resistivity of silver, nichrome, and glass at room temperature?
1) Silver < Nichrome < Glass
2) Glass < Nichrome < Silver
3) Silver < Glass < Nichrome
4) Nichrome < Silver < Glass
Q. At the time of short-circuit, the current in the circuit -
1) reduces substantially
2) does not change
3) increases heavily
4) keeps on fluctuating
Q. If the magnification produced by a lens is + 2, then the image is -
1) erect, virtual and smaller than the object
2) inverted, real and smaller than the object
3) erect, virtual and larger than the object
4) inverted, real, and larger than the object
Q. The Nobel Peace Prize 2022 has been awarded to -
I. Jailed Belarusian human rights activist Ales Byalyatski.
II. Russian human rights organization Memorial
III. Ukrainian human rights organization Center for Civil Liberties.
The correct code is -
1) Only I
2) Only II and III
3) Both I, II and III
4) None of the above
Q. What is 'Kalyani M4'?
1) Kalyani M4 is a Quick Reaction Fighting Vehicle (Heavy)
2) An Indian Remote Sensing Satellite
3) A surface-to-surface short-range missile
4) A submarine
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