Assertion (A): Vitamin C cannot be stored in our body. Reason (R): Vitamin C is water soluble and excreted in urine.
Assertion (A): Vitamin C cannot be stored in our body.Reason (R): Vitamin C is water soluble and excreted in urine. […]
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Assertion (A): First ionisation enthalpy of Cr is lower than that of Zn. Reason (R) : Zinc is a non-transition element.
Assertion (A): First ionisation enthalpy of Cr is lower than that of Zn.Reason (R): Zinc is a non-transition element. (A)
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Assertion (A): Aquatic species are more comfortable in cold water than in warm water. Reason (R): Solubility of oxygen gas in water decreases with increase in temperature.
Assertion (A): Aquatic species are more comfortable in cold water than in warm water.Reason (R): Solubility of oxygen gas in
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Assertion (A): A mixture of o-nitrophenol and p-nitrophenol can be separated by fractional distillation. Reason (R): o-nitrophenol is steam volatile due to intramolecular hydrogen bonding.
Assertion (A): A mixture of o-nitrophenol and p-nitrophenol can be separated by fractional distillation.Reason (R): o-nitrophenol is steam volatile due
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Deficiency of vitamin B1 causes the disease:
Deficiency of vitamin B1 causes the disease:(A) Convulsions(B) Beri-Beri(C) Fissuring at corners of mouth and lips (Cheilosis)(D) Muscular weakness Correct
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Anilinium hydrogen sulphate on heating at 453-473 K produres which of the following as a major product?
Anilinium hydrogen sulphate on heating at 453-473 K produres which of the following as a major product?(A) 2-aminobenzene sulphonic acid(B)
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Phenol reacts with conc. HNO3 to form
Phenol reacts with conc. HNO3 to form(A) Salicylic acid(B) Picric acid(C) Benzoic arid(D) Phthalic acid Correct Answer : Option (B)
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Which of the following haloalkanes is most reactive towards SN2 reaction?
Which of the following haloalkanes is most reactive towards SN2 reaction?(A) CH3 – CH2 – I(B) CH3 – CH2 –
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The number of moles of AgCl precipitated when excess AgNO3 solution is mixed with one mole of [Co(NH3)6]Cl3 is:
The number of moles of AgCl precipitated when excess AgNO3 solution is mixed with one mole of [Co(NH3)6]Cl3 is:(A) 0(C)
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A conductivity cell usually consists of two: (A) Copper electrodes (B) Platinum electrodes
A conductivity cell usually consists of two:(A) Copper electrodes(B) Platinum electrodes(C) Zinc electrodes(D) Iron electrodes Correct Answer : Option (B)
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Which of the following aqueous solutions will have the highest osmotic pressure?
Which of the following aqueous solutions will have the highest osmotic pressure?(A) 1% KCI(B) 1% glucose(C) 1% urea(D) 1% CaCl2
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With increase in atomic number, the melting point of transition metals:
With increase in atomic number, the melting point of transition metals:(A) first increases and then decreases(B) increases continuously(C) first decreases