GK: Class 12 General Q&A · Page 71
3,658 free answers on GK (General) for Class 12 students, across CBSE, ICSE and State boards.
Question & Answer
Questions
- GeneralClass 12All
How Do Metals and Nonmetals React with Each Other Class 10th
Metals and nonmetals react with each other through ionic bonding, where metals donate electrons to nonmetals, forming stable ionic compounds. Metals, having one to three electrons in their outermost shell, readily lose these electrons to achieve a stable noble gas configuration, becoming positively charged cations. Nonmetals, needing electrons to complete their outer shells, accept these electrons and become negatively charged anions. The electrostatic attraction between oppositely charged io
- GeneralClass 12All
Why is Salt Not Reactive
Common table salt (sodium chloride) is not particularly reactive under ordinary conditions because it exists in an extremely stable ionic form where sodium and chlorine atoms have already achieved stable electron configurations. Sodium has transferred its outer electron to chlorine, creating a strong electrostatic attraction between the positively charged sodium ion and the negatively charged chloride ion. This ionic bond represents a low-energy, stable state that does not readily undergo fur
- GeneralClass 12All
Which is the Most Important Chapter in Chemistry Class 10 CBSE
Chemical Reactions and Equations is widely considered one of the most important chapters in Class 10 CBSE Chemistry because it forms the foundation for understanding all subsequent topics. This chapter introduces fundamental concepts like balancing equations, types of reactions (combination, decomposition, displacement, redox), and the law of conservation of mass—principles that appear throughout the remaining syllabus. Mastering this chapter ensures students can write and interpret che
- GeneralClass 12All
What Metals Don't React with Salt
Metals that are less reactive than the metal component of a salt will not react with that salt solution. Gold, platinum, and silver typically don't react with common salts like sodium chloride, copper sulfate, or zinc sulfate because these noble metals sit at the bottom of the reactivity series. Their low reactivity means they cannot displace more reactive metals such as sodium, copper, or zinc from their compounds. Additionally, any metal will not react with its own salt, as explained by the
- GeneralClass 12All
What Happens When a Metal Reacts with a Salt
When a more reactive metal reacts with a salt, a displacement reaction occurs where the reactive metal displaces the less reactive metal from its compound, forming a new salt and releasing the displaced metal in its elemental form. This process involves electron transfer: the more reactive metal loses electrons (gets oxidized) while the metal ions in the salt gain electrons (get reduced). For example, when zinc metal is added to copper sulfate solution, zinc displaces copper, producing zinc s
- GeneralClass 12All
Why Do Metals Not React with Each Other
Metals generally do not react with each other in their pure solid forms under normal conditions because both metals want to lose electrons rather than gain them—they compete for the same chemical behavior instead of complementing each other. Chemical reactions typically require one substance to donate electrons while another accepts them, but metals are all electron donors by nature. When two metals come into physical contact, they may form alloys or metallic bonds, but this is a physic
- GeneralClass 12All
How Do Metals React with Solutions of Other Metal Salts Class 10
Metals react with solutions of other metal salts through displacement reactions, where a more reactive metal displaces a less reactive metal from its salt solution. This reaction type follows the activity series: metals higher in the series can push out metals lower down. For instance, when an iron nail is placed in copper sulfate solution, iron displaces copper because iron is more reactive, forming iron sulfate in solution while copper metal precipitates out. The blue color of copper sulfat
- GeneralClass 12All
Why Can Not Each Metal React to Its Own Salt
A metal cannot react with its own salt because such a reaction would require the metal to displace itself from the compound—a thermodynamic impossibility. In displacement reactions, a more reactive metal replaces a less reactive one from its salt solution, but a metal cannot be more reactive than itself. The activity series of metals determines these reactions: only metals higher in the series can displace those lower down. When a metal is already present as both the free element and th
- GeneralClass 12All
What characteristic of a mother can be best
If identifying a single "best" characteristic of mothers, unconditional love stands as the most foundational and impactful quality. This form of love accepts the child completely—not for their achievements, appearance, or compliance, but simply for existing. Unconditional love means a mother continues caring for and supporting her child through mistakes, failures, rebellious phases, and disappointing choices, maintaining the relationship even when behavior requires correction or consequ
- GeneralClass 12All
What good qualities do mother and father have
Good mothers and fathers share fundamental qualities regardless of gender, though they may express them differently. Both demonstrate unconditional love that accepts their children fully while still maintaining appropriate expectations and boundaries. They show patience with the repetitive nature of child-rearing and the slow pace of development, recognizing that growth happens gradually through countless small moments rather than dramatic breakthroughs. Good parents of both genders offer con
- GeneralClass 12All
What is the best definition of father and mother
The best functional definition recognizes a father as the male parent or parental figure who assumes responsibility for a child's upbringing, providing care, guidance, support, and nurturing throughout development. Similarly, a mother is the female parent or parental figure who takes on this comprehensive caregiving role. These definitions intentionally extend beyond biological connections to include adoptive parents, step-parents, and other adults who fulfill parenting functions, recognizing
- GeneralClass 12All
Why are good mothers and fathers important
Good mothers and fathers are critically important because they provide the foundation for virtually every aspect of healthy child development, with effects that ripple across the entire lifespan. During the earliest years, responsive parents create secure attachments that become internal working models for all future relationships, influencing how children perceive themselves and others. Children with actively engaged parents develop stronger language skills, higher cognitive abilities, bette
- GeneralClass 12All
What is mother 10 lines
A mother is the female parent who brings a child into the world through pregnancy and birth or who assumes the parenting role through adoption or step-parenting. She provides the first relationship most people experience, often serving as the primary source of comfort, nourishment, and care during infancy and early childhood. Mothers typically demonstrate deep emotional bonds with their children, often describing unconditional love that persists regardless of circumstances or behaviors. They
- GeneralClass 12All
What are the 5 roles of fathers
Fathers fulfill five essential roles that uniquely contribute to children's development and family functioning. First is the role of provider, which encompasses ensuring the family's material needs are met through financial support while also providing time, attention, emotional resources, and guidance. Modern providers recognize that children need their father's presence and engagement as much as economic stability. Second is the role of protector, creating both physical and emotional safety
- GeneralClass 12All
What is the role of a father and mother
The fundamental role of both fathers and mothers is to provide the stable foundation children need for healthy development—offering safety, love, guidance, and support as children grow toward independence. Mothers and fathers together create a caregiving system that addresses children's physical, emotional, cognitive, and social needs. This includes meeting basic survival requirements like nutrition, shelter, and healthcare while also providing the emotional security that allows childre
- GeneralClass 12All
What characteristics does he say he from his parents
While this question appears to reference a specific text or individual not provided in context, children generally recognize inheriting both visible and invisible characteristics from their parents. Most people can identify physical traits they've inherited—such as "I have my mother's curly hair" or "I got my height from my father"—as these are immediately observable. Beyond appearance, individuals often acknowledge inheriting talents, abilities, or tendencies, such as musical apt
- GeneralClass 12All
What are the five characteristics of a father
Fathers who actively contribute to their children's development typically demonstrate five core characteristics that research consistently links to positive outcomes. First is presence—not just physical availability, but emotional engagement and consistent involvement in daily activities, conversations, and routines. Present fathers prioritize time with their children despite competing demands, showing up for both ordinary moments and significant events. Second is protection, which exte
- GeneralClass 12All
What are the characteristics of a mother
Mothers typically embody characteristics centered on nurturing, connection, and responsive caregiving, though individual expression varies widely. At the core is a protective instinct that drives mothers to ensure their children's safety, health, and wellbeing, often leading them to anticipate needs before children articulate them. This manifests as constant vigilance—monitoring for dangers, tracking developmental milestones, noticing changes in behavior or health, and coordinating care
- GeneralClass 12All
What are the 12 qualities of the mother
While there's no universally definitive list of "12 qualities," mothers who positively shape their children's development consistently demonstrate a core set of attributes that transcend cultural boundaries. These include unconditional love that provides children with foundational security, patience to handle repeated questions and developmental setbacks, empathy that validates children's feelings and teaches emotional intelligence, and resilience that helps families navigate difficulties wit
- GeneralClass 12All
What are the qualities of father and mother
Mothers and fathers each bring distinct yet complementary qualities to parenting, though these qualities increasingly overlap as parenting roles evolve. Mothers traditionally demonstrate qualities of nurturing, emotional attunement, patience, and protective caregiving. They often excel at reading subtle emotional cues, providing comfort during distress, and creating secure attachments through consistent responsiveness. Mothers typically show exceptional multitasking abilities, managing househ