Chemistry - Single MCQs (Page 39)

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Q381. Which one of the following elements is the poorest conductor of heat?...Q382. The isotopes of chlorine with mass number 35 and 37 exist in the ratio of?...Q383. The electrochemical cell stops working after some time because ________?...Q384. Which one of the following substances does not have a melting point?...Q385. Which one of the following mixture is homogeneous?...Q386. The discovery of neutron became very late because?...Q387. Which one is not metal?...Q388. When formaldehyde and potassium hydroxide are heated , we get?...Q389. Which one of the following is not a mixture?...Q390. Cobalt60 is commonly used in radiation therapy because it emits?...