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Addition of Organometallic Reagents to Aldehydes and Ketones

Predict the p...

Question

Predict the products formed when cyclohexane carbaldehyde reacts with following reagents.

PhMgBr and then $H_{3} O^{+}$

Tollen's reagent

Semicarbazide and weak acid

Excess ethanol and acid

Zinc amalgam and dilute hydrochloric acid

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Predict the products formed when cyclohexanecarbaldehyde reacts with following reagents.

(i) PhMgBr and then H₃O⁺

(ii)Tollens’ reagent

(iii) Semicarbazide and weak acid

(iv)Excess ethanol and acid

(v) Zinc amalgam and dilute hydrochloric acid

Write word equations and then balanced equations for the reaction taking

place when −

(a) dilute sulphuric acid reacts with zinc granules.

(b) dilute hydrochloric acid reacts with magnesium ribbon.

(c) dilute sulphuric acid reacts with aluminium powder.

(d) dilute hydrochloric acid reacts with iron filings.

Q. Write balanced equation and name the products formed when:
(a) sodium hydrogencarbonate is added to nitric acid.
(b) cupric oxide reacts with nitric acid.
(c) zinc reacts with dilute nitric acid.
(d) concentrated nitric acid is heated.

Which of the following reagents could be used to distinguish between dilute nitric acid and dilute hydrochloric acid?

Q. Zinc metal reacts with dilute hydrochloric acid to form zinc chloride and liberate hydrogen gas

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Addition of Organometallic Reagents to Aldehydes and Ketones

Standard XII Chemistry

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