Kertas Soalan Percubaan Putrajaya SPM 2023 Kimia Kertas 1 – 40 Soalan Berjawapan

Which of the following atomic models was presented by Niels Bohr?

A cancer patient needs to undergo radiotherapy treatment to kill cancer cells. What is the substance used in the radiotherapy equipment?

A Iodine-131 B Cobalt-60 C Sodium-24 D Carbon-14

Which of the following is the correct formula of an ion?

A $\text{Ag}^{2+}$ B $\text{Ag}^{3+}$ C $\text{Al}^{2+}$ D $\text{Al}^{3+}$

Which of the following substances is equal to 1 mol? [Avogadro constant = $6.02 \times 10^{23}$; Relative atomic mass: Mg = 24, Cl = 35.5; Molar volume of gas at room conditions = 24 dm³ mol⁻¹]

A Magnesium chloride with a mass of 59.5 g B Zinc chloride containing $6.02 \times 10^{24}$ formula units C Silicon dioxide containing $6.02 \times 10^{23}$ molecules D Carbon dioxide with a volume of 2400 cm³ at room conditions

Which characteristics are correct about elements in Group 1 of the Periodic Table going down the group? I The tendency to donate electrons increases II The hardness of the metal increases III Heat conductivity decreases IV The melting point decreases

A I and III B I and IV C II and III D II and IV

Diagram 1 shows the formation of ammonia boron trifluoride when ammonia, $\text{NH}_3$ reacts with boron trifluoride, $\text{BF}_3$. What type of bond is formed?

A Dative bond B Ionic bond C Covalent bond D Hydrogen bond

Which of the following is the correct term for a chemical substance that ionises partially in water to produce a low concentration of hydroxide ions?

A Strong acid B Weak acid C Strong alkali D Weak alkali

Which of the following statements is correct about a catalyst?

A A catalyst can increase the quantity of product formed B A catalyst does not change its physical state after the reaction C A catalyst increases the activation energy of a reaction D Only a small amount of catalyst is required to speed up a reaction

Photochromic glass is a composite material that is used in the manufacture of car windows and building windows. Which of the following are the substances added to glass to make photochromic glass? I Copper(I) chloride II Iron(II) chloride III Silver chloride IV Barium chloride

A I and III B I and IV C II and III D II and IV

Diagram 2 shows a pressure cooker. Which of the following glass is used in part X?

A Borosilicate glass B Lead crystal glass C Soda-lime glass D Fused silica glass

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Putrajaya Trial 2023 Kimia Kertas 1

Putrajaya Trial 2023 Kimia Kertas 1

Putrajaya Trial 2023 Kimia Kertas 1

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