Chemistry - Mock Test 29

Question 281

The kitchen of the cell is called?

A) Cell wall B) Nucleus C) Vacuoles D) Plastids

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Question 282

The power house of cell is called?

A) Cell wall B) Mitochondria C) Ribosomes D) Nucleus

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Question 283

The chemical formula of caustic potash is?

A) NaOH B) Ca(OH)2 C) NH4OH D) KOH

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Question 284

Which of the following does not form an acidic salt?

A) Phosphoric acid B) Carbonic acid C) Hydrochloric acid D) Sulphuric acid

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Question 285

The difference of molecules of water in gypsum and PoP is?

A) 5/2 B) 2b C) 3/2 D) ½

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Question 286

The Ph of a solution of HCL is 4. This shows that the molarity of the solution is?

A) 4.0M B) 0.4M C) 0.0001M D) 0.001M

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Question 287

The function of quick lime in soda lime mixture is to?

A) Absorb moisture present in soda lime B) Increase the efficiency of soda lime C) Increase the pH of soda lime D) Take part in reaction with NaOH

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Question 288

Which of the following salts has no water of crystallization?

A) Blue vitriol B) Washing soda C) Baking soda D) Gypsum

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Question 289

The nature of calcium phosphate is present in tooth enamel is?

A) Basic B) Amphoteric C) Acidic D) Neutral

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Question 290

Which one of the following will turn red litmus blue?

A) Vinegar B) Baking soda solution C) Lemon juice D) Soft drinks

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