Dear Student, #40, C2H4 + H2O2 →CH2OH-CH2OHAnswer is Option (3) #2 There are two ways of preparing hydrogen from water molecules, Calcium reaction in water is very slow unless the temperature is increased to fastenthe reaction Ca+2H2O →H2+Ca(OH)2Amalgamated aluminium palys a role in decomposition of cold water for hydrogenproduction it wont in hot water2Al+6H2O→2Al(OH)3+3H2 Hence the correct answer is Option (A) Ca, acts as reducing agent Kindly post each question separately for quick answering Regards

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Solve this. Bond angle 40. C2H4 + H202 x. What is x 1. 2. (1) CH30H (2) C H50H (4) CH4 SECTION - C Previous Years Questions The ease of adsorption of the hydrates of alkali meta ions on an ion-exchange resins follows the order Hydrogen is prepared from H20 by adding x11)--Cä, which acts as reducing agent duo -f (2) A1, which acts as oxidising agent (3) Ag, which acts as reducing agent (4) Au, which acts as oxidising agent The hydride ion H- is stronger base that hydroxide ion OH-. Which of the following rea „ r (NaH) is dissolvi

Dear Student,

#40,

C_{2} H_{4} + H_{2} O_{2} \to C H_{2} O H - C H_{2} O H A n s w e r i s O p t i o n (3)

#2
There are two ways of preparing hydrogen from water molecules,

C a l c i u m r e a c t i o n i n w a t e r i s v e r y s l o w u n l e s s t h e t e m p e r a t u r e i s i n c r e a s e d t o f a s t e n t h e r e a c t i o n . C a + 2 H_{2} O \to H_{2} + C a (O H)_{2} A m a l g a m a t e d a l u m i n i u m p a l y s a r o l e i n d e c o m p o s i t i o n o f c o l d w a t e r f o r h y d r o g e n p r o d u c t i o n i t w o n t i n h o t w a t e r 2 A l + 6 H_{2} O \to 2 A l (O H)_{3} + 3 H_{2}

Hence the correct answer is Option (A) Ca, acts as reducing agent.

Kindly post each question separately for quick answering

Regards.

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