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  • 1 answers

Hemang Dubey 2 days, 9 hours ago

Root 5 plus iorta
  • 1 answers

Adithya Dev A 1 day, 7 hours ago

Cr = 1s2 2s2 2p6 3s2 3p6 3d5 4s1. Therefore, last electron is in 3d orbital. Quantum numbers are :- n = 3. l = 2. ml = 2. ms = 1/2.
  • 3 answers

Sameer Kumar Kumar 1 day, 23 hours ago

First you go through concept of organic chemistry in NCERT Book. Then make question by itself and answer if fell confident ,then make exercise question and internal question also ,finally you fell something I know about what actually organic chemistry after that you go on goc side book.

Hemang Dubey 2 days, 9 hours ago

Also be confident

Harsh Singh 3 days, 2 hours ago

By revising again and again and by doing lots of question practice
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Adithya Dev A 3 days, 2 hours ago

Pentene structure is CH2=CHCH2CH2CH3. Therefore, number of σ bonds = 8. And total number of π bonds = 1.
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  • 4 answers

Mukul Kumar 3 days, 3 hours ago

Here you have three units. 1st is meter. 2nd is foot. 3rd is centimetres.

Kiran Sambharwal 3 days, 8 hours ago

Meter

Dhruvi Chauhan 3 days, 10 hours ago

Meter

Abhash Tiwari 3 days, 16 hours ago

metere
  • 1 answers

Adithya Dev A 4 days, 10 hours ago

Electronic configuration of O = 1s2 2s2 2p4 and that for N = 1s2 2s2 2p5. Here, in N, the 2p subshell already has a HALF FILLED electronic arrangement unlike in O. This ensures greater stability for N atom than for O atom and thus, ionisation enthalpy (energy required to remove outermost electron) for O becomes lesser in magnitude than that for N.
  • 1 answers

Adithya Dev A 4 days, 9 hours ago

Be has an Electronic configuration of 1s2 2s2 and B has an electronic configuration of 1s2 2s2 2p1. The p 2p orbital, causing lesser shielding effect than 2s orbital, would be able to loose an electron much more easily than 2s orbital. Hence, Be has greater ionization enthalpy than B.
  • 1 answers

Prabhjot Kaur 5 days, 17 hours ago

Similarities between hydrogen and alkali metals : Electronic configuration Electropositive character Valency and oxidation state Reducing agents Dissimilarities between alkali metals: Ionisation enthlapy Non metallic in nature Atomicity Similarities between hydrogen and halogen Electronic configuration Ionisation enthlapy Electronegative character Oxidation state Diatomic nature Nature of compounds Dissimilarities between hydrogen and halogen Less tendency for hydride formation Absence of unshared pair of electron Oxides of halogens are acidic
  • 2 answers

Kaushik Ka 6 days, 19 hours ago

M1*V1 = M2*V2 (0.015×250)÷(5.25÷1,000) = V2 V2 = 714.285 ml

Kaushik Ka 6 days, 19 hours ago

M1*V1 = M2*V2
  • 1 answers

Adithya Dev A 3 days, 11 hours ago

Molar mass of Al2(SO4) 3 = 2(27) + (32 + 64) 3 = 54 + 288 = 342 g. // No of molecules = (20/342) × 6.02 × 10^23 = 0.352 × 10^23 molecules//
  • 1 answers

Adithya Dev A 1 week, 4 days ago

According to balanced equation, CH4 + 2O2 → CO2 + 2H2O. No of moles of CO2 produced = W2/M2 = 88/44 = 2 mol// Therefore, no. of moles of Methane required = 2 mol. //
  • 3 answers

Khushi Rani 1 week, 4 days ago

1s*2 2s*2p*5

Jatin Ola 1 week, 5 days ago

👍👍

Jatin Ola 1 week, 5 days ago

1s² 2s² 2p⁵
  • 2 answers

Priyanka Khatri 1 week, 2 days ago

Thanks

Roopam Almadi 1 week, 5 days ago

Fraction of charge = 1.03 × 10^-18 esu. cm / 4.8 × 10 ^-10 esu × 1.275 × 10 ^-8 cm Fraction of charge = 0.1683 % Ionic character = Fraction of charge × 100 So% ionic character = 16.83 % So % covalent character = 100 - 16.83 = 83.17 % ....
  • 1 answers

Adithya Dev A 2 weeks ago

Law of conservation of mass. LHS = RHS. Therefore, 2.36g Na2SO4 + x g BeCl2 = 3.88g BaSO4 + 1.98g NaCl. Therefore, required mass of BeCl2 = 3.5 g. //
  • 2 answers

Baisa Hkm 👸👸 1 week, 5 days ago

What is this

Amitesh Tiwari 2 weeks ago

Hdhdjsjvkvvieie
  • 1 answers

Adithya Dev A 2 weeks, 2 days ago

In case of big atoms like Sulphur and Potassium, the electrons in outer shells is not given a significant part of the effective nuclear charge of the atom due to the inner electrons. This is called SHIELDING EFFECT.
  • 1 answers

Diksha Thakur 2 weeks, 2 days ago

Limitations : (1) Hydrogen with 1 electron attains stability by sharing, gaining or losing 1 valence electron. It does not need to complete octet to attain stability. Also, He has only 2 electrons and is stable. (2) Incomplete octet: In certain molecules such as BeH 2 ​ , BeCl 2 ​ , BH 3 ​ , BF 3 ​ , the central atom has less than 8 electrons in its valence shell, yet the molecule is stable. (3) Expanded octet: In certain molecules such as PF 5 ​ , SF 6 ​ , IF 7 ​ , H 2 ​ SO 4 ​ , the central atom has more than 8 valence electrons, yet the molecule is stable.
  • 1 answers

Sameer Kumar Kumar 1 day, 23 hours ago

2.0×power of 10 is minus3
  • 2 answers

Komal Bhanndari 2 weeks, 4 days ago

106

Adithya Dev A 2 weeks, 6 days ago

Na2CO3 = 2(23) + 12 + 3(16) = 46 + 12 + 48 = 106 amu.
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  • 1 answers

Krishna Baranwal 2 weeks, 4 days ago

One object can't defined other object

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