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The foul smell of dead fish is due to the compound
Which is the most abundant element on the earth after oxygen according to it’s mass?
1. Silicon
2. Carbon 3. Sodium 4. Chlorine
Graphite is used in the nuclear reactor as
1. Fuel
2. Lubricant 3. Moderator 4. None of these
Which one of the following catalysts is used in hydrogenation of vegetable oils?
1. Zinc
2. Platinum 3. Nickel 4. Iron
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मनुय मनषेचत अडं ा कसके अतर मकहां यारोपत होता हैWhere is the fertilizedeggimplanted in humans?
I. योन Vagina
II. गभाश य Uterus III. गभाश य ीवा uterine cervix IV. अडं ाशय Ovary
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वरण ऋणामक होनेपर कसी पड का वेग या होगा What will be the velocity of abodywhen the acceleration is negative?
I. बढ़ेगा increase
II. घटेगा decrease III. शुय होगा Wll be zero IV. नयत रहेगा constant
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What is the unit in the SI UNIT of
momentum
I. kgm/s II. kgm/s 2 III. kgm/s -2 IV. kgms
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If atomic number of
magnesium is 12, what will be its valency
I. 1 II. 2 III. 3 IV. 4
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Which oxides react withacids as well as bases
I. नय Inactive
II. अलीय Acidic III. ारीय Alkaline IV. उभयधम Amphoteric
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आयरन क वायुक उपत मजलनेपर या बनता हैWhat is formed when iron burnsin the presence of air
I. Fe2O3
II. FeO III. Fe2O IV. FeO2
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When silver chloride is kept in sunlight, it becomes brown due towhat
is formed. I. सवर आयरन Silver iron
II. सवर ऑसाइड Silver oxide III. सवर धातुSilver metal IV. सवर ऑसलेट Silver oxlet
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एक वतुएक नयत वेग सेउर दशा मचल रही हैइस पर बल होगा An object movingnorthat a constant velocity will have force on it
I. पूवक ओर East Side
II. उर क ओर north side III. शुय zero IV. दण क ओर south side
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What is the next plant in theseed of a plant?
I. वतका Stigma
II. बीजांड Ovule III. अडं ाशय Ovary IV. णू Fetus
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Solder is alloy
I. Cu +Zn
II. Ni +Cu+ Zn III. Cu +Sn IV. Pb +Sn
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.दंत य कब शु होता हैजब मुंह पीएच होता है dental caries begin when the mouthpH
I. 8-9
II. 5.5-6.6 III. Less than 5.5 IV. 6.5-7.8
