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Filtration, Sedimentation and Decantation

Which of the ...

Question

Which of the following turns lime water milky?

निम्नलिखित में से कौन चूने के पानी को दूधिया कर देता है?

A

MgO

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B

CO₂

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C

O₂

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D

Ca(OH)₂

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Solution

The correct option is B CO₂
Solution

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Q. More than One Answer Type
एक से अधिक उत्तर प्रकार के प्रश्न

Prakriti takes two ingredients (T₁ and T₂) present in the kitchen and mixes them in a bowl. As soon as she mixes them she observes that a gas ‘G’ is released which when passed through lime water, turns it milky resulting into the formation of T₃ and water. If T₂ turns phenolphthalein pink, then choose the correct option(s).

प्रकृति रसोई में उपस्थित दो संघटकों (T₁ तथा T₂) को लेकर इन्हें एक कटोरी में मिश्रित करती है। जैसे ही वह इसे मिश्रित करती है वह प्रेक्षित करती है कि एक गैस ‘G’ मुक्त होती है जिसे चूने के पानी में प्रवाहित करने पर चूने का पानी दूधिया हो जाता है तथा इसके परिणामस्वरूप T₃ तथा जल प्राप्त होता है। यदि T₂, फ़िनॉल्फथेलिन को गुलाबी रंग में परिवर्तित कर देता है, तो सही विकल्प/विकल्पों का चयन कीजिए।

C O_{2}

is passed through lime water, it turns milky. Identify the cause of the milkiness.

Q. Which of the following turns lime water milky?

Q. Colourless salt

(A) Δ \to (B) + (C)

(B)

dissolves both in acid and alkali solution. Gas

(C)

turns lime water milky and acidified

K_{2} C r_{2} O_{7}

solution green. Ammoniacal solution of

(A)

gives white ppt

(D)

H_{2} S

(A)

Statement 1- Lime water turns milky when air is passed through the solution.

Statement 2- Air contains carbon dioxide which turns lime water milky.

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