Mindblown: a blog about philosophy.
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PART- 2
11. विकास के विभिन्न क्षेत्रों में गृह विज्ञान का क्या योगदान एवं उपयोगिताएँ हैं? वर्णन करें। (What are the applications of Home Science in the different field of development ? Describe.) उत्तर⇒ विकास के विभिन्न क्षेत्रों में गृह विज्ञान का योगदान निम्न हैं : (i) पारिवारिक स्तर के उत्थान में- गृह विज्ञान की शिक्षा प्राप्त…
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PART- 1
1. थाइराईड ग्रंथि से आप क्या समझते हैं? मानव शरीर में इसके कार्यों का वर्णन करें। (What do you understand by thyroid gland ! Describe its functions in human Body.) उतर⇒ थाइराईड ग्रंथि मानव शरीर में पाये जाने वाले अंत: स्रावी ग्रंथियों में से एक है। थाइराईड ग्रंथि गर्दन के श्वसन नली के ऊपर एवं…
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CHEMISTRY IN EVERYDAY LIFE
1. The use of chemicals for treatment of diseases is called (A) chemotherapy (B) physiotherapy (C) angiotherapy (D) polytherapy 2. Some drugs do not bind to the enzyme’s active site, instead bind to a different site of enzyme. This site is called (A) allosteric site (B) substrate site (C) ionic site (D) competitive site 3.…
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POLYMERS
1. Bakelite is an example of – (A) elastomer (B) fibre (c) thermoplastic (D) thermosetting 2. Arrange the following polymers is an increasin order of intermolecular forces; fibre, plastic, elastomer- (A) Elastomer < Fibre < plastic (B) Elastomer < Plastic < Fibre (C) Plastic < Elastomer < Fibre (D) Fibre < Elastomer < Plastic 3.…
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BIOMOLECULES
1. On oxidation with a mild oxidising agent like Br2/H2O, the glucose is oxidized to (A) saccharic acid (B) glucaric acid (C) gluconic acid (D) valeric acid 2. Invert sugar is (A) a type of cane sugar (B) optically inactive form of sugar (C) mixture of glucose and galactose (D) mixture of glucose and fructose…
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AMINES
1. Nitrogen atom of amino group is ……….. hybridised. (A) sp (B) sp2 (C) sp3 (D) sp3d 2. The most convenient method to prepare primary (i Amine) amine containing one carbon atom less is (A) Gabriel phthalmidie synthesis (B) Reductive amination of aldehydes (c) Hofmann bromamide reaction (D) Reduction of isonitriles 3. When excess of…
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ALDEHYDES, K
1. Propanone can be prepared from ethyne by (A) passing a mixture of ethyne and steam over a catalyst, magnesium at 420°C (B) passing a mixture of ethyne and ethanol over a catalyst zinc chromite (C) boiling ethyne with water in the presence of HgSO4 and H2SO4 (D) treating ethyne with iodine and NaOH 2.…
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ALCOHOLS, PHENOLS AND ETHERS
1. One mole of ethyl acetate on treatment with an excess of LiAlH4 in dry ether and subsequent acidification produces (A) 1 mole acetic acid + 1 mole ethyl alcohol (B) 1 mole ethyl alcohol + 1 mole methyl alcohol (C) 2 moles of ethyl alcohol (D) 1 mole of 2-butanol 2. Which of the…
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HALOALKANES AND HALOARENES
1. Good conductor of electricity and heat is (A) Anthracite coke (B) Diamond (C) Graphite (D) Charcoal 2. In which of the following allotropes of carbon, percentage of carbon is maximum ? (A) Wood charcoal (B) Coconut charcoal (C) Graphite (D) None of these 3. The hybridisation of carbon in diamond is (A) sp3 (B)…
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CO-ORDINATION COMPOUNDS
1. K2[Fe(CN)6] is a/an (A) double salt (B) complex salt (C) acid (D) base 2. Which of the following compounds has tetrahedral geometry ? (A) [Ni(CN)4]2- (B) [Pd(CN)4]2- (C) [PdCl4]2- (D) (NiCl4]2- 3. The number of possible isomers for the complex [Co(C2O4)(NH3)2] (A) 1 (B) 2 (C) 3 (D) 4 4. The oxidation state of…
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