14 public questions tagged with this topic.
Meeting directing correct; includes motivation, leadership, communication guidance.
Ref: NCERT Business Studies Class XII Chapter 7 Directing covers motivation leadership communication elements importance guiding employee performance effectively.
Political ideology reflects business environment; external forces affect operations significantly.
Ref: NCERT Business Studies Class XII Chapter 3 Business Environment discusses dimensions importance external forces affecting business operations effectively.
Various legislations passed by the reflects business environment; external forces affect operations significantly.
Ref: NCERT Business Studies Class XII Chapter 3 Business Environment discusses dimensions importance external forces affecting business operations effectively.
Beryllium (Be), due to its small size and high charge density, forms compounds with significant covalent character (e.g., BeCl_2). This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.
Ref: NCERT Chemistry Textbook for Class XI and XII, Chapter: Relevant Chemistry topic covering principles and examples as per NCERT.
Inner-transition elements (f-block) include lanthanoids and actinoids. Cerium (Ce, Z=58) has 4f¹, placing it in the f-block. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.
Ref: NCERT Chemistry Textbook for Class XI and XII, Chapter: p-Block, d and f Block Elements and Coordination Compounds, Topic: Properties of block elements and coordination chemistry.
Selenium (Se) belongs to Group 16 (chalcogens), known for forming compounds like H_2Se. This follows from NCERT principle where relation explains outcome clearly for students.
Ref: NCERT Chemistry Textbook for Class XI and XII, Chapter: Some Basic Concepts, Structure of Atom, Periodicity and relevant Chemistry topic, Topic: Mole concept and periodic trends.
Biological elemental composition reflects chemistry of water and carbon based macromolecules. Water, ~70% of cell mass, contributes two hydrogens per oxygen, while macromolecules proteins, nucleic acids, carbohydrates, lipids contain abundant oxygen in carbonyl, hydroxyl, carboxyl, phosphate and ether linkages. Consequently by wet mass oxygen is most abundant element constituting approximately 65% of human body, followed by carbon ~18% forming organic scaffold with tetravalency allowing complex polymers, hydrogen ~10% from water and hydrocarbon chains, nitrogen ~3% in peptide bonds and heteroc
Ref: Lehninger Principles of Biochemistry, 8th ed., Chapter 1: Elemental Composition of Cells.
Prussian blue indicates nitrogen (NaCN), and yellow precipitate (AgI) indicates iodine.
Ref: NCERT Class 11 Chemistry > Chapter 8: Organic Chemistry - Some Basic Principles and Techniques > Topic: Electronic Effects - Inductive Mesomeric Hyperconjugation and Resonance
The third period (n=3) includes 3s and 3p orbitals, accommodating 8 electrons, hence 8 elements (Na to Ar).
Ref: NCERT Class 11 Chemistry > Chapter 3: Classification of Elements and Periodicity in Properties > Topic: Nomenclature of Elements with Atomic Number >100
Elements in the same period have the same principal quantum number. Na (3s¹) and Al (3p¹) are in period 3, unlike the other pairs spanning different periods.
Ref: NCERT Class 11 Chemistry > Chapter 3: Classification of Elements and Periodicity in Properties > Topic: Modern Periodic Law and Present Form - Long Form Periodic Table
Among alkali metals (group 1), melting point decreases down the group due to weaker metallic bonding with increasing size. Li, being smallest, has the highest melting point.
Ref: NCERT Class 11 Chemistry > Chapter 3: Classification of Elements and Periodicity in Properties > Topic: Electronic Configuration and Types of Elements - s p d f Blocks
Melting point decreases down group 1 due to weaker metallic bonding. Cs (group 1, period 6) has the lowest melting point among Li, Na, and Cs.
Ref: NCERT Class 11 Chemistry > Chapter 3: Classification of Elements and Periodicity in Properties > Topic: Anomalous Properties and Second Period and Chemical Reactivity
