Username*
E-Mail*
Password*
Confirm Password*
Captcha* Click on image to update the captcha.
Username or email*
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
You must login to ask question.
(c) basic
(c) hissing sound
(d) an oxidation reaction which is exothermic
(c) N₂
(c) (i), (ii) and (iv)
(b) 2:1
(c) Calcium Carbonate
To Protect tooth decay we are advised to brush our teeth regularly. The nature of tooth paste used is-
(c) basic
(c) basic
See lessA student took solid quick lime in a china dish and added a small amount of water to it. He would hear
(c) hissing sound
(c) hissing sound
See lessThe process of respiration is
(d) an oxidation reaction which is exothermic
(d) an oxidation reaction which is exothermic
See lessIn order to prevent the spoilage of potato chips, they are packed in plastic bags containing the gas
(c) N₂
(c) N₂
See lessWhich the following statements about the given reaction are correct: 3Fe(s) + 4H₂O (g) → Fe₂O (s) + 4H (g) (i) Iron metal is getting oxidized (ii) Water is getting reduced (iii) Water is acting as reducing agent (iv) Water is acting as oxidizine agent.
(c) (i), (ii) and (iv)
(c) (i), (ii) and (iv)
See lessElectrolysis of water is decomposition reaction. The mole ratio of hydrogen and oxygen gases liberated during electrolysis of water is
(b) 2:1
(b) 2:1
See lessThe shiny finish of wall after white wash is because of
(c) Calcium Carbonate
(c) Calcium Carbonate
See less